Home / 2,180.29-3,008.73-1,236.16

Finding the Fourth Proportional to 2,180.29, 3,008.73 and 1,236.16

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Solution

The fourth proportional to 2,180.29, 3,008.73 and 1,236.16 is: 1,705.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.29 : 3,008.73 = 1,236.16 : x
  2. Step 2: Convert to fraction form
    2,180.29/3,008.73 = 1,236.16/x
  3. Step 3: Cross multiply
    2,180.29x = 3,008.73 × 1,236.16
  4. Step 4: Simplify right side
    2,180.29x = 3,719,276.11
  5. Step 5: Solve for x
    x = 3,719,276.11/2,180.29
  6. Step 6: Final answer
    x = 1,705.87

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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.