Home / 2,232.51-3,080.85-1,288.29

Finding the Fourth Proportional to 2,232.51, 3,080.85 and 1,288.29

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Solution

The fourth proportional to 2,232.51, 3,080.85 and 1,288.29 is: 1,777.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,232.51 : 3,080.85 = 1,288.29 : x
  2. Step 2: Convert to fraction form
    2,232.51/3,080.85 = 1,288.29/x
  3. Step 3: Cross multiply
    2,232.51x = 3,080.85 × 1,288.29
  4. Step 4: Simplify right side
    2,232.51x = 3,969,028.25
  5. Step 5: Solve for x
    x = 3,969,028.25/2,232.51
  6. Step 6: Final answer
    x = 1,777.83

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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.