Home / 1,932.09-2,666.35-1,092.78

Finding the Fourth Proportional to 1,932.09, 2,666.35 and 1,092.78

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Solution

The fourth proportional to 1,932.09, 2,666.35 and 1,092.78 is: 1,508.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.09 : 2,666.35 = 1,092.78 : x
  2. Step 2: Convert to fraction form
    1,932.09/2,666.35 = 1,092.78/x
  3. Step 3: Cross multiply
    1,932.09x = 2,666.35 × 1,092.78
  4. Step 4: Simplify right side
    1,932.09x = 2,913,737.32
  5. Step 5: Solve for x
    x = 2,913,737.32/1,932.09
  6. Step 6: Final answer
    x = 1,508.07

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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.