Home / 5,431.28-8,147.52-1,732.61

Finding the Fourth Proportional to 5,431.28, 8,147.52 and 1,732.61

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Solution

The fourth proportional to 5,431.28, 8,147.52 and 1,732.61 is: 2,599.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.28 : 8,147.52 = 1,732.61 : x
  2. Step 2: Convert to fraction form
    5,431.28/8,147.52 = 1,732.61/x
  3. Step 3: Cross multiply
    5,431.28x = 8,147.52 × 1,732.61
  4. Step 4: Simplify right side
    5,431.28x = 14,116,495.00
  5. Step 5: Solve for x
    x = 14,116,495.00/5,431.28
  6. Step 6: Final answer
    x = 2,599.11

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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.