Home / 2,146.28-2,963.30-1,447.40

Finding the Fourth Proportional to 2,146.28, 2,963.30 and 1,447.40

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Solution

The fourth proportional to 2,146.28, 2,963.30 and 1,447.40 is: 1,998.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.28 : 2,963.30 = 1,447.40 : x
  2. Step 2: Convert to fraction form
    2,146.28/2,963.30 = 1,447.40/x
  3. Step 3: Cross multiply
    2,146.28x = 2,963.30 × 1,447.40
  4. Step 4: Simplify right side
    2,146.28x = 4,289,080.42
  5. Step 5: Solve for x
    x = 4,289,080.42/2,146.28
  6. Step 6: Final answer
    x = 1,998.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.