Home / 5,251.35-7,876.80-1,964.46

Finding the Fourth Proportional to 5,251.35, 7,876.80 and 1,964.46

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Solution

The fourth proportional to 5,251.35, 7,876.80 and 1,964.46 is: 2,946.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.35 : 7,876.80 = 1,964.46 : x
  2. Step 2: Convert to fraction form
    5,251.35/7,876.80 = 1,964.46/x
  3. Step 3: Cross multiply
    5,251.35x = 7,876.80 × 1,964.46
  4. Step 4: Simplify right side
    5,251.35x = 15,473,658.53
  5. Step 5: Solve for x
    x = 15,473,658.53/5,251.35
  6. Step 6: Final answer
    x = 2,946.61

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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.