Home / 4,387.29-6,578.78-3,657.21

Finding the Fourth Proportional to 4,387.29, 6,578.78 and 3,657.21

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Solution

The fourth proportional to 4,387.29, 6,578.78 and 3,657.21 is: 5,484.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,387.29 : 6,578.78 = 3,657.21 : x
  2. Step 2: Convert to fraction form
    4,387.29/6,578.78 = 3,657.21/x
  3. Step 3: Cross multiply
    4,387.29x = 6,578.78 × 3,657.21
  4. Step 4: Simplify right side
    4,387.29x = 24,059,961.72
  5. Step 5: Solve for x
    x = 24,059,961.72/4,387.29
  6. Step 6: Final answer
    x = 5,484.01

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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.