Home / 1,451.26-2,176.55-411.37

Finding the Fourth Proportional to 1,451.26, 2,176.55 and 411.37

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Solution

The fourth proportional to 1,451.26, 2,176.55 and 411.37 is: 616.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.26 : 2,176.55 = 411.37 : x
  2. Step 2: Convert to fraction form
    1,451.26/2,176.55 = 411.37/x
  3. Step 3: Cross multiply
    1,451.26x = 2,176.55 × 411.37
  4. Step 4: Simplify right side
    1,451.26x = 895,356.49
  5. Step 5: Solve for x
    x = 895,356.49/1,451.26
  6. Step 6: Final answer
    x = 616.95

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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.