Home / 2,040.86-3,060.05-1,115.13

Finding the Fourth Proportional to 2,040.86, 3,060.05 and 1,115.13

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Solution

The fourth proportional to 2,040.86, 3,060.05 and 1,115.13 is: 1,672.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.86 : 3,060.05 = 1,115.13 : x
  2. Step 2: Convert to fraction form
    2,040.86/3,060.05 = 1,115.13/x
  3. Step 3: Cross multiply
    2,040.86x = 3,060.05 × 1,115.13
  4. Step 4: Simplify right side
    2,040.86x = 3,412,359.46
  5. Step 5: Solve for x
    x = 3,412,359.46/2,040.86
  6. Step 6: Final answer
    x = 1,672.02

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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.