Home / 3,019.20-4,158.56-2,863.68

Finding the Fourth Proportional to 3,019.20, 4,158.56 and 2,863.68

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Solution

The fourth proportional to 3,019.20, 4,158.56 and 2,863.68 is: 3,944.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.20 : 4,158.56 = 2,863.68 : x
  2. Step 2: Convert to fraction form
    3,019.20/4,158.56 = 2,863.68/x
  3. Step 3: Cross multiply
    3,019.20x = 4,158.56 × 2,863.68
  4. Step 4: Simplify right side
    3,019.20x = 11,908,785.10
  5. Step 5: Solve for x
    x = 11,908,785.10/3,019.20
  6. Step 6: Final answer
    x = 3,944.35

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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.