Home / 3,840.25-5,295.63-3,617.05

Finding the Fourth Proportional to 3,840.25, 5,295.63 and 3,617.05

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Solution

The fourth proportional to 3,840.25, 5,295.63 and 3,617.05 is: 4,987.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.25 : 5,295.63 = 3,617.05 : x
  2. Step 2: Convert to fraction form
    3,840.25/5,295.63 = 3,617.05/x
  3. Step 3: Cross multiply
    3,840.25x = 5,295.63 × 3,617.05
  4. Step 4: Simplify right side
    3,840.25x = 19,154,558.49
  5. Step 5: Solve for x
    x = 19,154,558.49/3,840.25
  6. Step 6: Final answer
    x = 4,987.84

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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.