Home / 1,452.10-2,176.82-477.70

Finding the Fourth Proportional to 1,452.10, 2,176.82 and 477.70

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Solution

The fourth proportional to 1,452.10, 2,176.82 and 477.70 is: 716.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.10 : 2,176.82 = 477.70 : x
  2. Step 2: Convert to fraction form
    1,452.10/2,176.82 = 477.70/x
  3. Step 3: Cross multiply
    1,452.10x = 2,176.82 × 477.70
  4. Step 4: Simplify right side
    1,452.10x = 1,039,866.91
  5. Step 5: Solve for x
    x = 1,039,866.91/1,452.10
  6. Step 6: Final answer
    x = 716.11

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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.