Home / 2,272.29-3,135.66-1,328.13

Finding the Fourth Proportional to 2,272.29, 3,135.66 and 1,328.13

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Solution

The fourth proportional to 2,272.29, 3,135.66 and 1,328.13 is: 1,832.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.29 : 3,135.66 = 1,328.13 : x
  2. Step 2: Convert to fraction form
    2,272.29/3,135.66 = 1,328.13/x
  3. Step 3: Cross multiply
    2,272.29x = 3,135.66 × 1,328.13
  4. Step 4: Simplify right side
    2,272.29x = 4,164,564.12
  5. Step 5: Solve for x
    x = 4,164,564.12/2,272.29
  6. Step 6: Final answer
    x = 1,832.76

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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.