Home / 5,251.38-7,876.44-1,964.40

Finding the Fourth Proportional to 5,251.38, 7,876.44 and 1,964.40

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Solution

The fourth proportional to 5,251.38, 7,876.44 and 1,964.40 is: 2,946.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.38 : 7,876.44 = 1,964.40 : x
  2. Step 2: Convert to fraction form
    5,251.38/7,876.44 = 1,964.40/x
  3. Step 3: Cross multiply
    5,251.38x = 7,876.44 × 1,964.40
  4. Step 4: Simplify right side
    5,251.38x = 15,472,478.74
  5. Step 5: Solve for x
    x = 15,472,478.74/5,251.38
  6. Step 6: Final answer
    x = 2,946.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.