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Finding the Fourth Proportional to 3,456.51, 4,770.20 and 1,964.49

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Solution

The fourth proportional to 3,456.51, 4,770.20 and 1,964.49 is: 2,711.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.51 : 4,770.20 = 1,964.49 : x
  2. Step 2: Convert to fraction form
    3,456.51/4,770.20 = 1,964.49/x
  3. Step 3: Cross multiply
    3,456.51x = 4,770.20 × 1,964.49
  4. Step 4: Simplify right side
    3,456.51x = 9,371,000.38
  5. Step 5: Solve for x
    x = 9,371,000.38/3,456.51
  6. Step 6: Final answer
    x = 2,711.12

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1.5x scale

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.