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Finding the Fourth Proportional to 2,514.67, 3,772.26 and 870.84

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Solution

The fourth proportional to 2,514.67, 3,772.26 and 870.84 is: 1,306.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,514.67 : 3,772.26 = 870.84 : x
  2. Step 2: Convert to fraction form
    2,514.67/3,772.26 = 870.84/x
  3. Step 3: Cross multiply
    2,514.67x = 3,772.26 × 870.84
  4. Step 4: Simplify right side
    2,514.67x = 3,285,034.90
  5. Step 5: Solve for x
    x = 3,285,034.90/2,514.67
  6. Step 6: Final answer
    x = 1,306.35

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1.5x scale

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.