Home / 1,926.32-2,658.31-1,042.11

Finding the Fourth Proportional to 1,926.32, 2,658.31 and 1,042.11

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Solution

The fourth proportional to 1,926.32, 2,658.31 and 1,042.11 is: 1,438.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.32 : 2,658.31 = 1,042.11 : x
  2. Step 2: Convert to fraction form
    1,926.32/2,658.31 = 1,042.11/x
  3. Step 3: Cross multiply
    1,926.32x = 2,658.31 × 1,042.11
  4. Step 4: Simplify right side
    1,926.32x = 2,770,248.83
  5. Step 5: Solve for x
    x = 2,770,248.83/1,926.32
  6. Step 6: Final answer
    x = 1,438.11

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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.