Home / 4,717.60-7,079.76-2,122.72

Finding the Fourth Proportional to 4,717.60, 7,079.76 and 2,122.72

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Solution

The fourth proportional to 4,717.60, 7,079.76 and 2,122.72 is: 3,185.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,717.60 : 7,079.76 = 2,122.72 : x
  2. Step 2: Convert to fraction form
    4,717.60/7,079.76 = 2,122.72/x
  3. Step 3: Cross multiply
    4,717.60x = 7,079.76 × 2,122.72
  4. Step 4: Simplify right side
    4,717.60x = 15,028,348.15
  5. Step 5: Solve for x
    x = 15,028,348.15/4,717.60
  6. Step 6: Final answer
    x = 3,185.59

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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.