Home / 2,052.20-2,831.70-1,266.20

Finding the Fourth Proportional to 2,052.20, 2,831.70 and 1,266.20

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Solution

The fourth proportional to 2,052.20, 2,831.70 and 1,266.20 is: 1,747.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,052.20 : 2,831.70 = 1,266.20 : x
  2. Step 2: Convert to fraction form
    2,052.20/2,831.70 = 1,266.20/x
  3. Step 3: Cross multiply
    2,052.20x = 2,831.70 × 1,266.20
  4. Step 4: Simplify right side
    2,052.20x = 3,585,498.54
  5. Step 5: Solve for x
    x = 3,585,498.54/2,052.20
  6. Step 6: Final answer
    x = 1,747.15

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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.