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Finding the Fourth Proportional to 1,141.68, 1,713.15 and 483.93

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Solution

The fourth proportional to 1,141.68, 1,713.15 and 483.93 is: 726.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,141.68 : 1,713.15 = 483.93 : x
  2. Step 2: Convert to fraction form
    1,141.68/1,713.15 = 483.93/x
  3. Step 3: Cross multiply
    1,141.68x = 1,713.15 × 483.93
  4. Step 4: Simplify right side
    1,141.68x = 829,045.88
  5. Step 5: Solve for x
    x = 829,045.88/1,141.68
  6. Step 6: Final answer
    x = 726.16

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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.