Home / 7,766.48-10,717.36-4,229.72

Finding the Fourth Proportional to 7,766.48, 10,717.36 and 4,229.72

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Solution

The fourth proportional to 7,766.48, 10,717.36 and 4,229.72 is: 5,836.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.48 : 10,717.36 = 4,229.72 : x
  2. Step 2: Convert to fraction form
    7,766.48/10,717.36 = 4,229.72/x
  3. Step 3: Cross multiply
    7,766.48x = 10,717.36 × 4,229.72
  4. Step 4: Simplify right side
    7,766.48x = 45,331,431.94
  5. Step 5: Solve for x
    x = 45,331,431.94/7,766.48
  6. Step 6: Final answer
    x = 5,836.81

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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.