Home / 1,542.40-2,128.66-1,046.08

Finding the Fourth Proportional to 1,542.40, 2,128.66 and 1,046.08

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Solution

The fourth proportional to 1,542.40, 2,128.66 and 1,046.08 is: 1,443.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.40 : 2,128.66 = 1,046.08 : x
  2. Step 2: Convert to fraction form
    1,542.40/2,128.66 = 1,046.08/x
  3. Step 3: Cross multiply
    1,542.40x = 2,128.66 × 1,046.08
  4. Step 4: Simplify right side
    1,542.40x = 2,226,748.65
  5. Step 5: Solve for x
    x = 2,226,748.65/1,542.40
  6. Step 6: Final answer
    x = 1,443.69

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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.