Home / 1,932.68-2,666.40-1,269.89

Finding the Fourth Proportional to 1,932.68, 2,666.40 and 1,269.89

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Solution

The fourth proportional to 1,932.68, 2,666.40 and 1,269.89 is: 1,751.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.68 : 2,666.40 = 1,269.89 : x
  2. Step 2: Convert to fraction form
    1,932.68/2,666.40 = 1,269.89/x
  3. Step 3: Cross multiply
    1,932.68x = 2,666.40 × 1,269.89
  4. Step 4: Simplify right side
    1,932.68x = 3,386,034.70
  5. Step 5: Solve for x
    x = 3,386,034.70/1,932.68
  6. Step 6: Final answer
    x = 1,751.99

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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.