Home / 1,473.10-2,209.80-499.28

Finding the Fourth Proportional to 1,473.10, 2,209.80 and 499.28

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Solution

The fourth proportional to 1,473.10, 2,209.80 and 499.28 is: 748.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.10 : 2,209.80 = 499.28 : x
  2. Step 2: Convert to fraction form
    1,473.10/2,209.80 = 499.28/x
  3. Step 3: Cross multiply
    1,473.10x = 2,209.80 × 499.28
  4. Step 4: Simplify right side
    1,473.10x = 1,103,308.94
  5. Step 5: Solve for x
    x = 1,103,308.94/1,473.10
  6. Step 6: Final answer
    x = 748.97

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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.