Home / 2,122.27-3,180.33-1,507.18

Finding the Fourth Proportional to 2,122.27, 3,180.33 and 1,507.18

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Solution

The fourth proportional to 2,122.27, 3,180.33 and 1,507.18 is: 2,258.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.27 : 3,180.33 = 1,507.18 : x
  2. Step 2: Convert to fraction form
    2,122.27/3,180.33 = 1,507.18/x
  3. Step 3: Cross multiply
    2,122.27x = 3,180.33 × 1,507.18
  4. Step 4: Simplify right side
    2,122.27x = 4,793,329.77
  5. Step 5: Solve for x
    x = 4,793,329.77/2,122.27
  6. Step 6: Final answer
    x = 2,258.59

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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.