Home / 1,451.44-2,177.29-411.45

Finding the Fourth Proportional to 1,451.44, 2,177.29 and 411.45

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Solution

The fourth proportional to 1,451.44, 2,177.29 and 411.45 is: 617.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.44 : 2,177.29 = 411.45 : x
  2. Step 2: Convert to fraction form
    1,451.44/2,177.29 = 411.45/x
  3. Step 3: Cross multiply
    1,451.44x = 2,177.29 × 411.45
  4. Step 4: Simplify right side
    1,451.44x = 895,844.94
  5. Step 5: Solve for x
    x = 895,844.94/1,451.44
  6. Step 6: Final answer
    x = 617.21

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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.