Home / 2,040.15-3,060.90-653.70

Finding the Fourth Proportional to 2,040.15, 3,060.90 and 653.70

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Solution

The fourth proportional to 2,040.15, 3,060.90 and 653.70 is: 980.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.15 : 3,060.90 = 653.70 : x
  2. Step 2: Convert to fraction form
    2,040.15/3,060.90 = 653.70/x
  3. Step 3: Cross multiply
    2,040.15x = 3,060.90 × 653.70
  4. Step 4: Simplify right side
    2,040.15x = 2,000,910.33
  5. Step 5: Solve for x
    x = 2,000,910.33/2,040.15
  6. Step 6: Final answer
    x = 980.77

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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.