Home / 3,847.31-5,306.26-2,785.23

Finding the Fourth Proportional to 3,847.31, 5,306.26 and 2,785.23

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Solution

The fourth proportional to 3,847.31, 5,306.26 and 2,785.23 is: 3,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.31 : 5,306.26 = 2,785.23 : x
  2. Step 2: Convert to fraction form
    3,847.31/5,306.26 = 2,785.23/x
  3. Step 3: Cross multiply
    3,847.31x = 5,306.26 × 2,785.23
  4. Step 4: Simplify right side
    3,847.31x = 14,779,114.08
  5. Step 5: Solve for x
    x = 14,779,114.08/3,847.31
  6. Step 6: Final answer
    x = 3,841.42

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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.