Home / 2,831.28-4,246.68-982.08

Finding the Fourth Proportional to 2,831.28, 4,246.68 and 982.08

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Solution

The fourth proportional to 2,831.28, 4,246.68 and 982.08 is: 1,473.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.28 : 4,246.68 = 982.08 : x
  2. Step 2: Convert to fraction form
    2,831.28/4,246.68 = 982.08/x
  3. Step 3: Cross multiply
    2,831.28x = 4,246.68 × 982.08
  4. Step 4: Simplify right side
    2,831.28x = 4,170,579.49
  5. Step 5: Solve for x
    x = 4,170,579.49/2,831.28
  6. Step 6: Final answer
    x = 1,473.04

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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.