Home / 2,785.60-4,170.20-2,058.42

Finding the Fourth Proportional to 2,785.60, 4,170.20 and 2,058.42

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Solution

The fourth proportional to 2,785.60, 4,170.20 and 2,058.42 is: 3,081.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.60 : 4,170.20 = 2,058.42 : x
  2. Step 2: Convert to fraction form
    2,785.60/4,170.20 = 2,058.42/x
  3. Step 3: Cross multiply
    2,785.60x = 4,170.20 × 2,058.42
  4. Step 4: Simplify right side
    2,785.60x = 8,584,023.08
  5. Step 5: Solve for x
    x = 8,584,023.08/2,785.60
  6. Step 6: Final answer
    x = 3,081.57

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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.