Home / 5,436.90-8,152.52-2,512.71

Finding the Fourth Proportional to 5,436.90, 8,152.52 and 2,512.71

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Solution

The fourth proportional to 5,436.90, 8,152.52 and 2,512.71 is: 3,767.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.90 : 8,152.52 = 2,512.71 : x
  2. Step 2: Convert to fraction form
    5,436.90/8,152.52 = 2,512.71/x
  3. Step 3: Cross multiply
    5,436.90x = 8,152.52 × 2,512.71
  4. Step 4: Simplify right side
    5,436.90x = 20,484,905.97
  5. Step 5: Solve for x
    x = 20,484,905.97/5,436.90
  6. Step 6: Final answer
    x = 3,767.75

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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.