Home / 3,091.20-4,267.24-2,150.16

Finding the Fourth Proportional to 3,091.20, 4,267.24 and 2,150.16

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Solution

The fourth proportional to 3,091.20, 4,267.24 and 2,150.16 is: 2,968.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.20 : 4,267.24 = 2,150.16 : x
  2. Step 2: Convert to fraction form
    3,091.20/4,267.24 = 2,150.16/x
  3. Step 3: Cross multiply
    3,091.20x = 4,267.24 × 2,150.16
  4. Step 4: Simplify right side
    3,091.20x = 9,175,248.76
  5. Step 5: Solve for x
    x = 9,175,248.76/3,091.20
  6. Step 6: Final answer
    x = 2,968.18

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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.