Home / 2,040.32-3,060.49-653.80

Finding the Fourth Proportional to 2,040.32, 3,060.49 and 653.80

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Solution

The fourth proportional to 2,040.32, 3,060.49 and 653.80 is: 980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.32 : 3,060.49 = 653.80 : x
  2. Step 2: Convert to fraction form
    2,040.32/3,060.49 = 653.80/x
  3. Step 3: Cross multiply
    2,040.32x = 3,060.49 × 653.80
  4. Step 4: Simplify right side
    2,040.32x = 2,000,948.36
  5. Step 5: Solve for x
    x = 2,000,948.36/2,040.32
  6. Step 6: Final answer
    x = 980.70

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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.