Home / 5,431.92-8,148.20-1,536

Finding the Fourth Proportional to 5,431.92, 8,148.20 and 1,536

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Solution

The fourth proportional to 5,431.92, 8,148.20 and 1,536 is: 2,304.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.92 : 8,148.20 = 1,536 : x
  2. Step 2: Convert to fraction form
    5,431.92/8,148.20 = 1,536/x
  3. Step 3: Cross multiply
    5,431.92x = 8,148.20 × 1,536
  4. Step 4: Simplify right side
    5,431.92x = 12,515,627.52
  5. Step 5: Solve for x
    x = 12,515,627.52/5,431.92
  6. Step 6: Final answer
    x = 2,304.09

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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.