Home / 2,351.28-3,244.80-1,289.02

Finding the Fourth Proportional to 2,351.28, 3,244.80 and 1,289.02

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Solution

The fourth proportional to 2,351.28, 3,244.80 and 1,289.02 is: 1,778.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.28 : 3,244.80 = 1,289.02 : x
  2. Step 2: Convert to fraction form
    2,351.28/3,244.80 = 1,289.02/x
  3. Step 3: Cross multiply
    2,351.28x = 3,244.80 × 1,289.02
  4. Step 4: Simplify right side
    2,351.28x = 4,182,612.10
  5. Step 5: Solve for x
    x = 4,182,612.10/2,351.28
  6. Step 6: Final answer
    x = 1,778.87

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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.