Home / 1,453.52-2,179.20-631.64

Finding the Fourth Proportional to 1,453.52, 2,179.20 and 631.64

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Solution

The fourth proportional to 1,453.52, 2,179.20 and 631.64 is: 946.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.52 : 2,179.20 = 631.64 : x
  2. Step 2: Convert to fraction form
    1,453.52/2,179.20 = 631.64/x
  3. Step 3: Cross multiply
    1,453.52x = 2,179.20 × 631.64
  4. Step 4: Simplify right side
    1,453.52x = 1,376,469.89
  5. Step 5: Solve for x
    x = 1,376,469.89/1,453.52
  6. Step 6: Final answer
    x = 946.99

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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.