Home / 2,127.15-3,190.32-1,031.02

Finding the Fourth Proportional to 2,127.15, 3,190.32 and 1,031.02

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Solution

The fourth proportional to 2,127.15, 3,190.32 and 1,031.02 is: 1,546.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.15 : 3,190.32 = 1,031.02 : x
  2. Step 2: Convert to fraction form
    2,127.15/3,190.32 = 1,031.02/x
  3. Step 3: Cross multiply
    2,127.15x = 3,190.32 × 1,031.02
  4. Step 4: Simplify right side
    2,127.15x = 3,289,283.73
  5. Step 5: Solve for x
    x = 3,289,283.73/2,127.15
  6. Step 6: Final answer
    x = 1,546.33

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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.