Home / 2,767.79-4,155.33-2,650.55

Finding the Fourth Proportional to 2,767.79, 4,155.33 and 2,650.55

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Solution

The fourth proportional to 2,767.79, 4,155.33 and 2,650.55 is: 3,979.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.79 : 4,155.33 = 2,650.55 : x
  2. Step 2: Convert to fraction form
    2,767.79/4,155.33 = 2,650.55/x
  3. Step 3: Cross multiply
    2,767.79x = 4,155.33 × 2,650.55
  4. Step 4: Simplify right side
    2,767.79x = 11,013,889.15
  5. Step 5: Solve for x
    x = 11,013,889.15/2,767.79
  6. Step 6: Final answer
    x = 3,979.32

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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.