Home / 2,040.21-3,060.70-653.90

Finding the Fourth Proportional to 2,040.21, 3,060.70 and 653.90

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Solution

The fourth proportional to 2,040.21, 3,060.70 and 653.90 is: 980.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.21 : 3,060.70 = 653.90 : x
  2. Step 2: Convert to fraction form
    2,040.21/3,060.70 = 653.90/x
  3. Step 3: Cross multiply
    2,040.21x = 3,060.70 × 653.90
  4. Step 4: Simplify right side
    2,040.21x = 2,001,384.32
  5. Step 5: Solve for x
    x = 2,001,384.32/2,040.21
  6. Step 6: Final answer
    x = 980.97

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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.