Home / 1,453.30-2,180.12-631.66

Finding the Fourth Proportional to 1,453.30, 2,180.12 and 631.66

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Solution

The fourth proportional to 1,453.30, 2,180.12 and 631.66 is: 947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.30 : 2,180.12 = 631.66 : x
  2. Step 2: Convert to fraction form
    1,453.30/2,180.12 = 631.66/x
  3. Step 3: Cross multiply
    1,453.30x = 2,180.12 × 631.66
  4. Step 4: Simplify right side
    1,453.30x = 1,377,094.60
  5. Step 5: Solve for x
    x = 1,377,094.60/1,453.30
  6. Step 6: Final answer
    x = 947.56

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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.