Home / 6,517.28-8,985.38-4,155.32

Finding the Fourth Proportional to 6,517.28, 8,985.38 and 4,155.32

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Solution

The fourth proportional to 6,517.28, 8,985.38 and 4,155.32 is: 5,728.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517.28 : 8,985.38 = 4,155.32 : x
  2. Step 2: Convert to fraction form
    6,517.28/8,985.38 = 4,155.32/x
  3. Step 3: Cross multiply
    6,517.28x = 8,985.38 × 4,155.32
  4. Step 4: Simplify right side
    6,517.28x = 37,337,129.22
  5. Step 5: Solve for x
    x = 37,337,129.22/6,517.28
  6. Step 6: Final answer
    x = 5,728.94

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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.