Home / 2,542.13-3,812.23-875.78

Finding the Fourth Proportional to 2,542.13, 3,812.23 and 875.78

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Solution

The fourth proportional to 2,542.13, 3,812.23 and 875.78 is: 1,313.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,542.13 : 3,812.23 = 875.78 : x
  2. Step 2: Convert to fraction form
    2,542.13/3,812.23 = 875.78/x
  3. Step 3: Cross multiply
    2,542.13x = 3,812.23 × 875.78
  4. Step 4: Simplify right side
    2,542.13x = 3,338,671.12
  5. Step 5: Solve for x
    x = 3,338,671.12/2,542.13
  6. Step 6: Final answer
    x = 1,313.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.