Home / 1,342.24-1,854.07-1,118.91

Finding the Fourth Proportional to 1,342.24, 1,854.07 and 1,118.91

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Solution

The fourth proportional to 1,342.24, 1,854.07 and 1,118.91 is: 1,545.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.24 : 1,854.07 = 1,118.91 : x
  2. Step 2: Convert to fraction form
    1,342.24/1,854.07 = 1,118.91/x
  3. Step 3: Cross multiply
    1,342.24x = 1,854.07 × 1,118.91
  4. Step 4: Simplify right side
    1,342.24x = 2,074,537.46
  5. Step 5: Solve for x
    x = 2,074,537.46/1,342.24
  6. Step 6: Final answer
    x = 1,545.58

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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.