Home / 5,475.20-7,555.88-3,117.29

Finding the Fourth Proportional to 5,475.20, 7,555.88 and 3,117.29

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Solution

The fourth proportional to 5,475.20, 7,555.88 and 3,117.29 is: 4,301.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.20 : 7,555.88 = 3,117.29 : x
  2. Step 2: Convert to fraction form
    5,475.20/7,555.88 = 3,117.29/x
  3. Step 3: Cross multiply
    5,475.20x = 7,555.88 × 3,117.29
  4. Step 4: Simplify right side
    5,475.20x = 23,553,839.18
  5. Step 5: Solve for x
    x = 23,553,839.18/5,475.20
  6. Step 6: Final answer
    x = 4,301.92

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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.