Home / 7,902.72-11,846.40-3,283.20

Finding the Fourth Proportional to 7,902.72, 11,846.40 and 3,283.20

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Solution

The fourth proportional to 7,902.72, 11,846.40 and 3,283.20 is: 4,921.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902.72 : 11,846.40 = 3,283.20 : x
  2. Step 2: Convert to fraction form
    7,902.72/11,846.40 = 3,283.20/x
  3. Step 3: Cross multiply
    7,902.72x = 11,846.40 × 3,283.20
  4. Step 4: Simplify right side
    7,902.72x = 38,894,100.48
  5. Step 5: Solve for x
    x = 38,894,100.48/7,902.72
  6. Step 6: Final answer
    x = 4,921.61

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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.