Home / 2,040.38-3,060.50-653.79

Finding the Fourth Proportional to 2,040.38, 3,060.50 and 653.79

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Solution

The fourth proportional to 2,040.38, 3,060.50 and 653.79 is: 980.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.38 : 3,060.50 = 653.79 : x
  2. Step 2: Convert to fraction form
    2,040.38/3,060.50 = 653.79/x
  3. Step 3: Cross multiply
    2,040.38x = 3,060.50 × 653.79
  4. Step 4: Simplify right side
    2,040.38x = 2,000,921.03
  5. Step 5: Solve for x
    x = 2,000,921.03/2,040.38
  6. Step 6: Final answer
    x = 980.66

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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.