Home / 5,515.46-7,610.92-3,124.74

Finding the Fourth Proportional to 5,515.46, 7,610.92 and 3,124.74

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Solution

The fourth proportional to 5,515.46, 7,610.92 and 3,124.74 is: 4,311.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.46 : 7,610.92 = 3,124.74 : x
  2. Step 2: Convert to fraction form
    5,515.46/7,610.92 = 3,124.74/x
  3. Step 3: Cross multiply
    5,515.46x = 7,610.92 × 3,124.74
  4. Step 4: Simplify right side
    5,515.46x = 23,782,146.16
  5. Step 5: Solve for x
    x = 23,782,146.16/5,515.46
  6. Step 6: Final answer
    x = 4,311.91

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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.