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Finding the Fourth Proportional to 3,458.88, 4,772.70 and 1,966.50

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Solution

The fourth proportional to 3,458.88, 4,772.70 and 1,966.50 is: 2,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.88 : 4,772.70 = 1,966.50 : x
  2. Step 2: Convert to fraction form
    3,458.88/4,772.70 = 1,966.50/x
  3. Step 3: Cross multiply
    3,458.88x = 4,772.70 × 1,966.50
  4. Step 4: Simplify right side
    3,458.88x = 9,385,514.55
  5. Step 5: Solve for x
    x = 9,385,514.55/3,458.88
  6. Step 6: Final answer
    x = 2,713.45

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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.