Home / 5,113.62-7,633.10-4,387.86

Finding the Fourth Proportional to 5,113.62, 7,633.10 and 4,387.86

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Solution

The fourth proportional to 5,113.62, 7,633.10 and 4,387.86 is: 6,549.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.62 : 7,633.10 = 4,387.86 : x
  2. Step 2: Convert to fraction form
    5,113.62/7,633.10 = 4,387.86/x
  3. Step 3: Cross multiply
    5,113.62x = 7,633.10 × 4,387.86
  4. Step 4: Simplify right side
    5,113.62x = 33,492,974.17
  5. Step 5: Solve for x
    x = 33,492,974.17/5,113.62
  6. Step 6: Final answer
    x = 6,549.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.