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Finding the Fourth Proportional to 1,444.75, 2,167.39 and 457.82

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Solution

The fourth proportional to 1,444.75, 2,167.39 and 457.82 is: 686.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.75 : 2,167.39 = 457.82 : x
  2. Step 2: Convert to fraction form
    1,444.75/2,167.39 = 457.82/x
  3. Step 3: Cross multiply
    1,444.75x = 2,167.39 × 457.82
  4. Step 4: Simplify right side
    1,444.75x = 992,263.65
  5. Step 5: Solve for x
    x = 992,263.65/1,444.75
  6. Step 6: Final answer
    x = 686.81

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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.