Home / 3,856.11-5,321.60-2,439.29

Finding the Fourth Proportional to 3,856.11, 5,321.60 and 2,439.29

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Solution

The fourth proportional to 3,856.11, 5,321.60 and 2,439.29 is: 3,366.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.11 : 5,321.60 = 2,439.29 : x
  2. Step 2: Convert to fraction form
    3,856.11/5,321.60 = 2,439.29/x
  3. Step 3: Cross multiply
    3,856.11x = 5,321.60 × 2,439.29
  4. Step 4: Simplify right side
    3,856.11x = 12,980,925.66
  5. Step 5: Solve for x
    x = 12,980,925.66/3,856.11
  6. Step 6: Final answer
    x = 3,366.33

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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.