Home / 1,631.69-2,446.61-520.89

Finding the Fourth Proportional to 1,631.69, 2,446.61 and 520.89

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Solution

The fourth proportional to 1,631.69, 2,446.61 and 520.89 is: 781.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.69 : 2,446.61 = 520.89 : x
  2. Step 2: Convert to fraction form
    1,631.69/2,446.61 = 520.89/x
  3. Step 3: Cross multiply
    1,631.69x = 2,446.61 × 520.89
  4. Step 4: Simplify right side
    1,631.69x = 1,274,423.40
  5. Step 5: Solve for x
    x = 1,274,423.40/1,631.69
  6. Step 6: Final answer
    x = 781.04

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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.