Home / 3,681.32-5,076.73-2,840.69

Finding the Fourth Proportional to 3,681.32, 5,076.73 and 2,840.69

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Solution

The fourth proportional to 3,681.32, 5,076.73 and 2,840.69 is: 3,917.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.32 : 5,076.73 = 2,840.69 : x
  2. Step 2: Convert to fraction form
    3,681.32/5,076.73 = 2,840.69/x
  3. Step 3: Cross multiply
    3,681.32x = 5,076.73 × 2,840.69
  4. Step 4: Simplify right side
    3,681.32x = 14,421,416.14
  5. Step 5: Solve for x
    x = 14,421,416.14/3,681.32
  6. Step 6: Final answer
    x = 3,917.46

Related Problems

Find fourth proportional to 1,840.66, 2,538.37 and 1,420.35
Half scale
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Double scale
Find fourth proportional to 3,682.32, 5,078.11 and 2,841.69
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.