Home / 1,926.49-2,658.55-1,042.28

Finding the Fourth Proportional to 1,926.49, 2,658.55 and 1,042.28

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Solution

The fourth proportional to 1,926.49, 2,658.55 and 1,042.28 is: 1,438.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.49 : 2,658.55 = 1,042.28 : x
  2. Step 2: Convert to fraction form
    1,926.49/2,658.55 = 1,042.28/x
  3. Step 3: Cross multiply
    1,926.49x = 2,658.55 × 1,042.28
  4. Step 4: Simplify right side
    1,926.49x = 2,770,944.53
  5. Step 5: Solve for x
    x = 2,770,944.53/1,926.49
  6. Step 6: Final answer
    x = 1,438.34

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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.