Home / 1,627.13-2,440.28-456.83

Finding the Fourth Proportional to 1,627.13, 2,440.28 and 456.83

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Solution

The fourth proportional to 1,627.13, 2,440.28 and 456.83 is: 685.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.13 : 2,440.28 = 456.83 : x
  2. Step 2: Convert to fraction form
    1,627.13/2,440.28 = 456.83/x
  3. Step 3: Cross multiply
    1,627.13x = 2,440.28 × 456.83
  4. Step 4: Simplify right side
    1,627.13x = 1,114,793.11
  5. Step 5: Solve for x
    x = 1,114,793.11/1,627.13
  6. Step 6: Final answer
    x = 685.13

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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.