Home / 1,888.12-2,831.57-1,229.59

Finding the Fourth Proportional to 1,888.12, 2,831.57 and 1,229.59

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Solution

The fourth proportional to 1,888.12, 2,831.57 and 1,229.59 is: 1,843.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.12 : 2,831.57 = 1,229.59 : x
  2. Step 2: Convert to fraction form
    1,888.12/2,831.57 = 1,229.59/x
  3. Step 3: Cross multiply
    1,888.12x = 2,831.57 × 1,229.59
  4. Step 4: Simplify right side
    1,888.12x = 3,481,656.93
  5. Step 5: Solve for x
    x = 3,481,656.93/1,888.12
  6. Step 6: Final answer
    x = 1,843.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.