Home / 5,428.92-8,142.32-1,730.16

Finding the Fourth Proportional to 5,428.92, 8,142.32 and 1,730.16

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Solution

The fourth proportional to 5,428.92, 8,142.32 and 1,730.16 is: 2,594.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.92 : 8,142.32 = 1,730.16 : x
  2. Step 2: Convert to fraction form
    5,428.92/8,142.32 = 1,730.16/x
  3. Step 3: Cross multiply
    5,428.92x = 8,142.32 × 1,730.16
  4. Step 4: Simplify right side
    5,428.92x = 14,087,520.70
  5. Step 5: Solve for x
    x = 14,087,520.70/5,428.92
  6. Step 6: Final answer
    x = 2,594.90

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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.