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Finding the Fourth Proportional to 2,125.66, 2,933.68 and 1,339.70

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Solution

The fourth proportional to 2,125.66, 2,933.68 and 1,339.70 is: 1,848.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.66 : 2,933.68 = 1,339.70 : x
  2. Step 2: Convert to fraction form
    2,125.66/2,933.68 = 1,339.70/x
  3. Step 3: Cross multiply
    2,125.66x = 2,933.68 × 1,339.70
  4. Step 4: Simplify right side
    2,125.66x = 3,930,251.10
  5. Step 5: Solve for x
    x = 3,930,251.10/2,125.66
  6. Step 6: Final answer
    x = 1,848.96

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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.