Home / 6,615.41-9,923.39-2,916.78

Finding the Fourth Proportional to 6,615.41, 9,923.39 and 2,916.78

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Solution

The fourth proportional to 6,615.41, 9,923.39 and 2,916.78 is: 4,375.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.41 : 9,923.39 = 2,916.78 : x
  2. Step 2: Convert to fraction form
    6,615.41/9,923.39 = 2,916.78/x
  3. Step 3: Cross multiply
    6,615.41x = 9,923.39 × 2,916.78
  4. Step 4: Simplify right side
    6,615.41x = 28,944,330.90
  5. Step 5: Solve for x
    x = 28,944,330.90/6,615.41
  6. Step 6: Final answer
    x = 4,375.29

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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.