Home / 2,127.31-3,188.13-1,029.49

Finding the Fourth Proportional to 2,127.31, 3,188.13 and 1,029.49

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Solution

The fourth proportional to 2,127.31, 3,188.13 and 1,029.49 is: 1,542.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.31 : 3,188.13 = 1,029.49 : x
  2. Step 2: Convert to fraction form
    2,127.31/3,188.13 = 1,029.49/x
  3. Step 3: Cross multiply
    2,127.31x = 3,188.13 × 1,029.49
  4. Step 4: Simplify right side
    2,127.31x = 3,282,147.95
  5. Step 5: Solve for x
    x = 3,282,147.95/2,127.31
  6. Step 6: Final answer
    x = 1,542.86

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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.