Home / 5,126.31-7,074.45-3,136.83

Finding the Fourth Proportional to 5,126.31, 7,074.45 and 3,136.83

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Solution

The fourth proportional to 5,126.31, 7,074.45 and 3,136.83 is: 4,328.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.31 : 7,074.45 = 3,136.83 : x
  2. Step 2: Convert to fraction form
    5,126.31/7,074.45 = 3,136.83/x
  3. Step 3: Cross multiply
    5,126.31x = 7,074.45 × 3,136.83
  4. Step 4: Simplify right side
    5,126.31x = 22,191,346.99
  5. Step 5: Solve for x
    x = 22,191,346.99/5,126.31
  6. Step 6: Final answer
    x = 4,328.91

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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.