Home / 3,456.40-4,769.65-1,964.11

Finding the Fourth Proportional to 3,456.40, 4,769.65 and 1,964.11

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Solution

The fourth proportional to 3,456.40, 4,769.65 and 1,964.11 is: 2,710.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.40 : 4,769.65 = 1,964.11 : x
  2. Step 2: Convert to fraction form
    3,456.40/4,769.65 = 1,964.11/x
  3. Step 3: Cross multiply
    3,456.40x = 4,769.65 × 1,964.11
  4. Step 4: Simplify right side
    3,456.40x = 9,368,116.74
  5. Step 5: Solve for x
    x = 9,368,116.74/3,456.40
  6. Step 6: Final answer
    x = 2,710.37

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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.