Home / 2,423.08-3,634.65-691.70

Finding the Fourth Proportional to 2,423.08, 3,634.65 and 691.70

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Solution

The fourth proportional to 2,423.08, 3,634.65 and 691.70 is: 1,037.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.08 : 3,634.65 = 691.70 : x
  2. Step 2: Convert to fraction form
    2,423.08/3,634.65 = 691.70/x
  3. Step 3: Cross multiply
    2,423.08x = 3,634.65 × 691.70
  4. Step 4: Simplify right side
    2,423.08x = 2,514,087.41
  5. Step 5: Solve for x
    x = 2,514,087.41/2,423.08
  6. Step 6: Final answer
    x = 1,037.56

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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.