Home / 5,428.52-8,142.68-1,730.68

Finding the Fourth Proportional to 5,428.52, 8,142.68 and 1,730.68

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Solution

The fourth proportional to 5,428.52, 8,142.68 and 1,730.68 is: 2,595.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.52 : 8,142.68 = 1,730.68 : x
  2. Step 2: Convert to fraction form
    5,428.52/8,142.68 = 1,730.68/x
  3. Step 3: Cross multiply
    5,428.52x = 8,142.68 × 1,730.68
  4. Step 4: Simplify right side
    5,428.52x = 14,092,373.42
  5. Step 5: Solve for x
    x = 14,092,373.42/5,428.52
  6. Step 6: Final answer
    x = 2,595.99

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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.