Home / 3,862.15-5,331.74-2,447.31

Finding the Fourth Proportional to 3,862.15, 5,331.74 and 2,447.31

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Solution

The fourth proportional to 3,862.15, 5,331.74 and 2,447.31 is: 3,378.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.15 : 5,331.74 = 2,447.31 : x
  2. Step 2: Convert to fraction form
    3,862.15/5,331.74 = 2,447.31/x
  3. Step 3: Cross multiply
    3,862.15x = 5,331.74 × 2,447.31
  4. Step 4: Simplify right side
    3,862.15x = 13,048,400.08
  5. Step 5: Solve for x
    x = 13,048,400.08/3,862.15
  6. Step 6: Final answer
    x = 3,378.53

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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.