Home / 5,429.28-8,143.23-1,731.88

Finding the Fourth Proportional to 5,429.28, 8,143.23 and 1,731.88

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Solution

The fourth proportional to 5,429.28, 8,143.23 and 1,731.88 is: 2,597.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.28 : 8,143.23 = 1,731.88 : x
  2. Step 2: Convert to fraction form
    5,429.28/8,143.23 = 1,731.88/x
  3. Step 3: Cross multiply
    5,429.28x = 8,143.23 × 1,731.88
  4. Step 4: Simplify right side
    5,429.28x = 14,103,113.85
  5. Step 5: Solve for x
    x = 14,103,113.85/5,429.28
  6. Step 6: Final answer
    x = 2,597.60

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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.