Home / 3,507.85-4,840.63-1,995.20

Finding the Fourth Proportional to 3,507.85, 4,840.63 and 1,995.20

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Solution

The fourth proportional to 3,507.85, 4,840.63 and 1,995.20 is: 2,753.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.85 : 4,840.63 = 1,995.20 : x
  2. Step 2: Convert to fraction form
    3,507.85/4,840.63 = 1,995.20/x
  3. Step 3: Cross multiply
    3,507.85x = 4,840.63 × 1,995.20
  4. Step 4: Simplify right side
    3,507.85x = 9,658,039.77
  5. Step 5: Solve for x
    x = 9,658,039.77/3,507.85
  6. Step 6: Final answer
    x = 2,753.27

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Half scale
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Double scale
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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.