Home / 2,122.16-3,177.68-1,630.20

Finding the Fourth Proportional to 2,122.16, 3,177.68 and 1,630.20

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Solution

The fourth proportional to 2,122.16, 3,177.68 and 1,630.20 is: 2,441.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.16 : 3,177.68 = 1,630.20 : x
  2. Step 2: Convert to fraction form
    2,122.16/3,177.68 = 1,630.20/x
  3. Step 3: Cross multiply
    2,122.16x = 3,177.68 × 1,630.20
  4. Step 4: Simplify right side
    2,122.16x = 5,180,253.94
  5. Step 5: Solve for x
    x = 5,180,253.94/2,122.16
  6. Step 6: Final answer
    x = 2,441.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.