Home / 1,449.27-2,163.40-1,274.11

Finding the Fourth Proportional to 1,449.27, 2,163.40 and 1,274.11

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Solution

The fourth proportional to 1,449.27, 2,163.40 and 1,274.11 is: 1,901.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449.27 : 2,163.40 = 1,274.11 : x
  2. Step 2: Convert to fraction form
    1,449.27/2,163.40 = 1,274.11/x
  3. Step 3: Cross multiply
    1,449.27x = 2,163.40 × 1,274.11
  4. Step 4: Simplify right side
    1,449.27x = 2,756,409.57
  5. Step 5: Solve for x
    x = 2,756,409.57/1,449.27
  6. Step 6: Final answer
    x = 1,901.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.