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Finding the Fourth Proportional to 1,658.59, 2,288.75 and 950.42

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Solution

The fourth proportional to 1,658.59, 2,288.75 and 950.42 is: 1,311.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658.59 : 2,288.75 = 950.42 : x
  2. Step 2: Convert to fraction form
    1,658.59/2,288.75 = 950.42/x
  3. Step 3: Cross multiply
    1,658.59x = 2,288.75 × 950.42
  4. Step 4: Simplify right side
    1,658.59x = 2,175,274.74
  5. Step 5: Solve for x
    x = 2,175,274.74/1,658.59
  6. Step 6: Final answer
    x = 1,311.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.