Home / 2,272.50-3,135.78-1,328.52

Finding the Fourth Proportional to 2,272.50, 3,135.78 and 1,328.52

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Solution

The fourth proportional to 2,272.50, 3,135.78 and 1,328.52 is: 1,833.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.50 : 3,135.78 = 1,328.52 : x
  2. Step 2: Convert to fraction form
    2,272.50/3,135.78 = 1,328.52/x
  3. Step 3: Cross multiply
    2,272.50x = 3,135.78 × 1,328.52
  4. Step 4: Simplify right side
    2,272.50x = 4,165,946.45
  5. Step 5: Solve for x
    x = 4,165,946.45/2,272.50
  6. Step 6: Final answer
    x = 1,833.20

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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.