Home / 2,127.54-3,188.22-1,512.43

Finding the Fourth Proportional to 2,127.54, 3,188.22 and 1,512.43

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Solution

The fourth proportional to 2,127.54, 3,188.22 and 1,512.43 is: 2,266.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.54 : 3,188.22 = 1,512.43 : x
  2. Step 2: Convert to fraction form
    2,127.54/3,188.22 = 1,512.43/x
  3. Step 3: Cross multiply
    2,127.54x = 3,188.22 × 1,512.43
  4. Step 4: Simplify right side
    2,127.54x = 4,821,959.57
  5. Step 5: Solve for x
    x = 4,821,959.57/2,127.54
  6. Step 6: Final answer
    x = 2,266.45

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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.