Home / 1,303.20-1,951.92-1,272.24

Finding the Fourth Proportional to 1,303.20, 1,951.92 and 1,272.24

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Solution

The fourth proportional to 1,303.20, 1,951.92 and 1,272.24 is: 1,905.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303.20 : 1,951.92 = 1,272.24 : x
  2. Step 2: Convert to fraction form
    1,303.20/1,951.92 = 1,272.24/x
  3. Step 3: Cross multiply
    1,303.20x = 1,951.92 × 1,272.24
  4. Step 4: Simplify right side
    1,303.20x = 2,483,310.70
  5. Step 5: Solve for x
    x = 2,483,310.70/1,303.20
  6. Step 6: Final answer
    x = 1,905.55

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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.