Home / 4,380.92-6,569.46-1,643

Finding the Fourth Proportional to 4,380.92, 6,569.46 and 1,643

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Solution

The fourth proportional to 4,380.92, 6,569.46 and 1,643 is: 2,463.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380.92 : 6,569.46 = 1,643 : x
  2. Step 2: Convert to fraction form
    4,380.92/6,569.46 = 1,643/x
  3. Step 3: Cross multiply
    4,380.92x = 6,569.46 × 1,643
  4. Step 4: Simplify right side
    4,380.92x = 10,793,622.78
  5. Step 5: Solve for x
    x = 10,793,622.78/4,380.92
  6. Step 6: Final answer
    x = 2,463.78

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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.