Home / 3,456.28-4,769.67-1,964.20

Finding the Fourth Proportional to 3,456.28, 4,769.67 and 1,964.20

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Solution

The fourth proportional to 3,456.28, 4,769.67 and 1,964.20 is: 2,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.28 : 4,769.67 = 1,964.20 : x
  2. Step 2: Convert to fraction form
    3,456.28/4,769.67 = 1,964.20/x
  3. Step 3: Cross multiply
    3,456.28x = 4,769.67 × 1,964.20
  4. Step 4: Simplify right side
    3,456.28x = 9,368,578.45
  5. Step 5: Solve for x
    x = 9,368,578.45/3,456.28
  6. Step 6: Final answer
    x = 2,710.60

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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.