Home / 2,542.15-3,810.29-981.46

Finding the Fourth Proportional to 2,542.15, 3,810.29 and 981.46

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Solution

The fourth proportional to 2,542.15, 3,810.29 and 981.46 is: 1,471.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,542.15 : 3,810.29 = 981.46 : x
  2. Step 2: Convert to fraction form
    2,542.15/3,810.29 = 981.46/x
  3. Step 3: Cross multiply
    2,542.15x = 3,810.29 × 981.46
  4. Step 4: Simplify right side
    2,542.15x = 3,739,652.60
  5. Step 5: Solve for x
    x = 3,739,652.60/2,542.15
  6. Step 6: Final answer
    x = 1,471.06

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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.