Home / 1,449.28-2,177.34-1,426.60

Finding the Fourth Proportional to 1,449.28, 2,177.34 and 1,426.60

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Solution

The fourth proportional to 1,449.28, 2,177.34 and 1,426.60 is: 2,143.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449.28 : 2,177.34 = 1,426.60 : x
  2. Step 2: Convert to fraction form
    1,449.28/2,177.34 = 1,426.60/x
  3. Step 3: Cross multiply
    1,449.28x = 2,177.34 × 1,426.60
  4. Step 4: Simplify right side
    1,449.28x = 3,106,193.24
  5. Step 5: Solve for x
    x = 3,106,193.24/1,449.28
  6. Step 6: Final answer
    x = 2,143.27

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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.