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Finding the Fourth Proportional to 3,451.40, 4,763.05 and 1,959.38

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Solution

The fourth proportional to 3,451.40, 4,763.05 and 1,959.38 is: 2,704.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.40 : 4,763.05 = 1,959.38 : x
  2. Step 2: Convert to fraction form
    3,451.40/4,763.05 = 1,959.38/x
  3. Step 3: Cross multiply
    3,451.40x = 4,763.05 × 1,959.38
  4. Step 4: Simplify right side
    3,451.40x = 9,332,624.91
  5. Step 5: Solve for x
    x = 9,332,624.91/3,451.40
  6. Step 6: Final answer
    x = 2,704.01

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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.