Home / 3,190.32-4,402.42-1,863.95

Finding the Fourth Proportional to 3,190.32, 4,402.42 and 1,863.95

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Solution

The fourth proportional to 3,190.32, 4,402.42 and 1,863.95 is: 2,572.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.32 : 4,402.42 = 1,863.95 : x
  2. Step 2: Convert to fraction form
    3,190.32/4,402.42 = 1,863.95/x
  3. Step 3: Cross multiply
    3,190.32x = 4,402.42 × 1,863.95
  4. Step 4: Simplify right side
    3,190.32x = 8,205,864.09
  5. Step 5: Solve for x
    x = 8,205,864.09/3,190.32
  6. Step 6: Final answer
    x = 2,572.11

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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.