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Finding the Fourth Proportional to 3,488.80, 4,818.80 and 2,608.50

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Solution

The fourth proportional to 3,488.80, 4,818.80 and 2,608.50 is: 3,602.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.80 : 4,818.80 = 2,608.50 : x
  2. Step 2: Convert to fraction form
    3,488.80/4,818.80 = 2,608.50/x
  3. Step 3: Cross multiply
    3,488.80x = 4,818.80 × 2,608.50
  4. Step 4: Simplify right side
    3,488.80x = 12,569,839.80
  5. Step 5: Solve for x
    x = 12,569,839.80/3,488.80
  6. Step 6: Final answer
    x = 3,602.91

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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.