Home / 5,425.71-8,138.57-1,529.61

Finding the Fourth Proportional to 5,425.71, 8,138.57 and 1,529.61

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Solution

The fourth proportional to 5,425.71, 8,138.57 and 1,529.61 is: 2,294.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.71 : 8,138.57 = 1,529.61 : x
  2. Step 2: Convert to fraction form
    5,425.71/8,138.57 = 1,529.61/x
  3. Step 3: Cross multiply
    5,425.71x = 8,138.57 × 1,529.61
  4. Step 4: Simplify right side
    5,425.71x = 12,448,830.41
  5. Step 5: Solve for x
    x = 12,448,830.41/5,425.71
  6. Step 6: Final answer
    x = 2,294.42

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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.