Home / 5,417.26-8,126.10-1,521.78

Finding the Fourth Proportional to 5,417.26, 8,126.10 and 1,521.78

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Solution

The fourth proportional to 5,417.26, 8,126.10 and 1,521.78 is: 2,282.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.26 : 8,126.10 = 1,521.78 : x
  2. Step 2: Convert to fraction form
    5,417.26/8,126.10 = 1,521.78/x
  3. Step 3: Cross multiply
    5,417.26x = 8,126.10 × 1,521.78
  4. Step 4: Simplify right side
    5,417.26x = 12,366,136.46
  5. Step 5: Solve for x
    x = 12,366,136.46/5,417.26
  6. Step 6: Final answer
    x = 2,282.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.