Home / 1,454.41-2,181.58-576.78

Finding the Fourth Proportional to 1,454.41, 2,181.58 and 576.78

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Solution

The fourth proportional to 1,454.41, 2,181.58 and 576.78 is: 865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.41 : 2,181.58 = 576.78 : x
  2. Step 2: Convert to fraction form
    1,454.41/2,181.58 = 576.78/x
  3. Step 3: Cross multiply
    1,454.41x = 2,181.58 × 576.78
  4. Step 4: Simplify right side
    1,454.41x = 1,258,280.80
  5. Step 5: Solve for x
    x = 1,258,280.80/1,454.41
  6. Step 6: Final answer
    x = 865.15

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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.