Home / 2,127.11-3,185.19-1,302.88

Finding the Fourth Proportional to 2,127.11, 3,185.19 and 1,302.88

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Solution

The fourth proportional to 2,127.11, 3,185.19 and 1,302.88 is: 1,950.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.11 : 3,185.19 = 1,302.88 : x
  2. Step 2: Convert to fraction form
    2,127.11/3,185.19 = 1,302.88/x
  3. Step 3: Cross multiply
    2,127.11x = 3,185.19 × 1,302.88
  4. Step 4: Simplify right side
    2,127.11x = 4,149,931.57
  5. Step 5: Solve for x
    x = 4,149,931.57/2,127.11
  6. Step 6: Final answer
    x = 1,950.97

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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.