Home / 2,072.18-2,859.12-1,512.95

Finding the Fourth Proportional to 2,072.18, 2,859.12 and 1,512.95

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Solution

The fourth proportional to 2,072.18, 2,859.12 and 1,512.95 is: 2,087.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.18 : 2,859.12 = 1,512.95 : x
  2. Step 2: Convert to fraction form
    2,072.18/2,859.12 = 1,512.95/x
  3. Step 3: Cross multiply
    2,072.18x = 2,859.12 × 1,512.95
  4. Step 4: Simplify right side
    2,072.18x = 4,325,691.31
  5. Step 5: Solve for x
    x = 4,325,691.31/2,072.18
  6. Step 6: Final answer
    x = 2,087.51

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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.