Home / 1,630.38-2,446.08-519.96

Finding the Fourth Proportional to 1,630.38, 2,446.08 and 519.96

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Solution

The fourth proportional to 1,630.38, 2,446.08 and 519.96 is: 780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.38 : 2,446.08 = 519.96 : x
  2. Step 2: Convert to fraction form
    1,630.38/2,446.08 = 519.96/x
  3. Step 3: Cross multiply
    1,630.38x = 2,446.08 × 519.96
  4. Step 4: Simplify right side
    1,630.38x = 1,271,863.76
  5. Step 5: Solve for x
    x = 1,271,863.76/1,630.38
  6. Step 6: Final answer
    x = 780.10

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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.