Home / 5,515.17-7,608.76-3,156.04

Finding the Fourth Proportional to 5,515.17, 7,608.76 and 3,156.04

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Solution

The fourth proportional to 5,515.17, 7,608.76 and 3,156.04 is: 4,354.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.17 : 7,608.76 = 3,156.04 : x
  2. Step 2: Convert to fraction form
    5,515.17/7,608.76 = 3,156.04/x
  3. Step 3: Cross multiply
    5,515.17x = 7,608.76 × 3,156.04
  4. Step 4: Simplify right side
    5,515.17x = 24,013,550.91
  5. Step 5: Solve for x
    x = 24,013,550.91/5,515.17
  6. Step 6: Final answer
    x = 4,354.09

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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.