Home / 4,543.38-6,815.13-1,621.86

Finding the Fourth Proportional to 4,543.38, 6,815.13 and 1,621.86

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Solution

The fourth proportional to 4,543.38, 6,815.13 and 1,621.86 is: 2,432.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,543.38 : 6,815.13 = 1,621.86 : x
  2. Step 2: Convert to fraction form
    4,543.38/6,815.13 = 1,621.86/x
  3. Step 3: Cross multiply
    4,543.38x = 6,815.13 × 1,621.86
  4. Step 4: Simplify right side
    4,543.38x = 11,053,186.74
  5. Step 5: Solve for x
    x = 11,053,186.74/4,543.38
  6. Step 6: Final answer
    x = 2,432.81

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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.