Home / 1,542.39-2,128.08-1,148.73

Finding the Fourth Proportional to 1,542.39, 2,128.08 and 1,148.73

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Solution

The fourth proportional to 1,542.39, 2,128.08 and 1,148.73 is: 1,584.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.39 : 2,128.08 = 1,148.73 : x
  2. Step 2: Convert to fraction form
    1,542.39/2,128.08 = 1,148.73/x
  3. Step 3: Cross multiply
    1,542.39x = 2,128.08 × 1,148.73
  4. Step 4: Simplify right side
    1,542.39x = 2,444,589.34
  5. Step 5: Solve for x
    x = 2,444,589.34/1,542.39
  6. Step 6: Final answer
    x = 1,584.94

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1.5x scale

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.