Home / 3,847.55-5,306.60-2,785.48

Finding the Fourth Proportional to 3,847.55, 5,306.60 and 2,785.48

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Solution

The fourth proportional to 3,847.55, 5,306.60 and 2,785.48 is: 3,841.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.55 : 5,306.60 = 2,785.48 : x
  2. Step 2: Convert to fraction form
    3,847.55/5,306.60 = 2,785.48/x
  3. Step 3: Cross multiply
    3,847.55x = 5,306.60 × 2,785.48
  4. Step 4: Simplify right side
    3,847.55x = 14,781,421.87
  5. Step 5: Solve for x
    x = 14,781,421.87/3,847.55
  6. Step 6: Final answer
    x = 3,841.77

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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.