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Finding the Fourth Proportional to 3,543.70, 4,881.87 and 2,479.48

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Solution

The fourth proportional to 3,543.70, 4,881.87 and 2,479.48 is: 3,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.70 : 4,881.87 = 2,479.48 : x
  2. Step 2: Convert to fraction form
    3,543.70/4,881.87 = 2,479.48/x
  3. Step 3: Cross multiply
    3,543.70x = 4,881.87 × 2,479.48
  4. Step 4: Simplify right side
    3,543.70x = 12,104,499.03
  5. Step 5: Solve for x
    x = 12,104,499.03/3,543.70
  6. Step 6: Final answer
    x = 3,415.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.