Home / 5,515.46-7,612-3,126.14

Finding the Fourth Proportional to 5,515.46, 7,612 and 3,126.14

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Solution

The fourth proportional to 5,515.46, 7,612 and 3,126.14 is: 4,314.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.46 : 7,612 = 3,126.14 : x
  2. Step 2: Convert to fraction form
    5,515.46/7,612 = 3,126.14/x
  3. Step 3: Cross multiply
    5,515.46x = 7,612 × 3,126.14
  4. Step 4: Simplify right side
    5,515.46x = 23,796,177.68
  5. Step 5: Solve for x
    x = 23,796,177.68/5,515.46
  6. Step 6: Final answer
    x = 4,314.45

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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.