Home / 1,931.73-2,666.07-1,092.78

Finding the Fourth Proportional to 1,931.73, 2,666.07 and 1,092.78

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Solution

The fourth proportional to 1,931.73, 2,666.07 and 1,092.78 is: 1,508.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.73 : 2,666.07 = 1,092.78 : x
  2. Step 2: Convert to fraction form
    1,931.73/2,666.07 = 1,092.78/x
  3. Step 3: Cross multiply
    1,931.73x = 2,666.07 × 1,092.78
  4. Step 4: Simplify right side
    1,931.73x = 2,913,427.97
  5. Step 5: Solve for x
    x = 2,913,427.97/1,931.73
  6. Step 6: Final answer
    x = 1,508.20

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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.