Home / 2,286.16-3,411.35-1,990.96

Finding the Fourth Proportional to 2,286.16, 3,411.35 and 1,990.96

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Solution

The fourth proportional to 2,286.16, 3,411.35 and 1,990.96 is: 2,970.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.16 : 3,411.35 = 1,990.96 : x
  2. Step 2: Convert to fraction form
    2,286.16/3,411.35 = 1,990.96/x
  3. Step 3: Cross multiply
    2,286.16x = 3,411.35 × 1,990.96
  4. Step 4: Simplify right side
    2,286.16x = 6,791,861.40
  5. Step 5: Solve for x
    x = 6,791,861.40/2,286.16
  6. Step 6: Final answer
    x = 2,970.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.