Home / 2,003.40-3,002.70-1,489.80

Finding the Fourth Proportional to 2,003.40, 3,002.70 and 1,489.80

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Solution

The fourth proportional to 2,003.40, 3,002.70 and 1,489.80 is: 2,232.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,003.40 : 3,002.70 = 1,489.80 : x
  2. Step 2: Convert to fraction form
    2,003.40/3,002.70 = 1,489.80/x
  3. Step 3: Cross multiply
    2,003.40x = 3,002.70 × 1,489.80
  4. Step 4: Simplify right side
    2,003.40x = 4,473,422.46
  5. Step 5: Solve for x
    x = 4,473,422.46/2,003.40
  6. Step 6: Final answer
    x = 2,232.92

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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.