Home / 1,542.48-2,127.72-952.80

Finding the Fourth Proportional to 1,542.48, 2,127.72 and 952.80

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Solution

The fourth proportional to 1,542.48, 2,127.72 and 952.80 is: 1,314.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.48 : 2,127.72 = 952.80 : x
  2. Step 2: Convert to fraction form
    1,542.48/2,127.72 = 952.80/x
  3. Step 3: Cross multiply
    1,542.48x = 2,127.72 × 952.80
  4. Step 4: Simplify right side
    1,542.48x = 2,027,291.62
  5. Step 5: Solve for x
    x = 2,027,291.62/1,542.48
  6. Step 6: Final answer
    x = 1,314.31

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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.