Home / 1,358.26-1,873.80-1,042.97

Finding the Fourth Proportional to 1,358.26, 1,873.80 and 1,042.97

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Solution

The fourth proportional to 1,358.26, 1,873.80 and 1,042.97 is: 1,438.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.26 : 1,873.80 = 1,042.97 : x
  2. Step 2: Convert to fraction form
    1,358.26/1,873.80 = 1,042.97/x
  3. Step 3: Cross multiply
    1,358.26x = 1,873.80 × 1,042.97
  4. Step 4: Simplify right side
    1,358.26x = 1,954,307.82
  5. Step 5: Solve for x
    x = 1,954,307.82/1,358.26
  6. Step 6: Final answer
    x = 1,438.83

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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.