Home / 2,230.22-3,079.18-1,392.18

Finding the Fourth Proportional to 2,230.22, 3,079.18 and 1,392.18

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Solution

The fourth proportional to 2,230.22, 3,079.18 and 1,392.18 is: 1,922.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.22 : 3,079.18 = 1,392.18 : x
  2. Step 2: Convert to fraction form
    2,230.22/3,079.18 = 1,392.18/x
  3. Step 3: Cross multiply
    2,230.22x = 3,079.18 × 1,392.18
  4. Step 4: Simplify right side
    2,230.22x = 4,286,772.81
  5. Step 5: Solve for x
    x = 4,286,772.81/2,230.22
  6. Step 6: Final answer
    x = 1,922.13

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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.