Home / 4,720.96-6,517.36-3,157.28

Finding the Fourth Proportional to 4,720.96, 6,517.36 and 3,157.28

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Solution

The fourth proportional to 4,720.96, 6,517.36 and 3,157.28 is: 4,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.96 : 6,517.36 = 3,157.28 : x
  2. Step 2: Convert to fraction form
    4,720.96/6,517.36 = 3,157.28/x
  3. Step 3: Cross multiply
    4,720.96x = 6,517.36 × 3,157.28
  4. Step 4: Simplify right side
    4,720.96x = 20,577,130.38
  5. Step 5: Solve for x
    x = 20,577,130.38/4,720.96
  6. Step 6: Final answer
    x = 4,358.68

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Half scale
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Double scale
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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.