Home / 2,785.10-4,193.92-2,059.78

Finding the Fourth Proportional to 2,785.10, 4,193.92 and 2,059.78

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Solution

The fourth proportional to 2,785.10, 4,193.92 and 2,059.78 is: 3,101.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.10 : 4,193.92 = 2,059.78 : x
  2. Step 2: Convert to fraction form
    2,785.10/4,193.92 = 2,059.78/x
  3. Step 3: Cross multiply
    2,785.10x = 4,193.92 × 2,059.78
  4. Step 4: Simplify right side
    2,785.10x = 8,638,552.54
  5. Step 5: Solve for x
    x = 8,638,552.54/2,785.10
  6. Step 6: Final answer
    x = 3,101.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.