Home / 2,272.14-3,135.50-1,328.18

Finding the Fourth Proportional to 2,272.14, 3,135.50 and 1,328.18

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Solution

The fourth proportional to 2,272.14, 3,135.50 and 1,328.18 is: 1,832.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.14 : 3,135.50 = 1,328.18 : x
  2. Step 2: Convert to fraction form
    2,272.14/3,135.50 = 1,328.18/x
  3. Step 3: Cross multiply
    2,272.14x = 3,135.50 × 1,328.18
  4. Step 4: Simplify right side
    2,272.14x = 4,164,508.39
  5. Step 5: Solve for x
    x = 4,164,508.39/2,272.14
  6. Step 6: Final answer
    x = 1,832.86

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1.5x scale

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.