Home / 3,021.02-4,531.17-1,288.70

Finding the Fourth Proportional to 3,021.02, 4,531.17 and 1,288.70

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Solution

The fourth proportional to 3,021.02, 4,531.17 and 1,288.70 is: 1,932.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.02 : 4,531.17 = 1,288.70 : x
  2. Step 2: Convert to fraction form
    3,021.02/4,531.17 = 1,288.70/x
  3. Step 3: Cross multiply
    3,021.02x = 4,531.17 × 1,288.70
  4. Step 4: Simplify right side
    3,021.02x = 5,839,318.78
  5. Step 5: Solve for x
    x = 5,839,318.78/3,021.02
  6. Step 6: Final answer
    x = 1,932.90

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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.