Home / 2,831.28-4,246.30-882.42

Finding the Fourth Proportional to 2,831.28, 4,246.30 and 882.42

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Solution

The fourth proportional to 2,831.28, 4,246.30 and 882.42 is: 1,323.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.28 : 4,246.30 = 882.42 : x
  2. Step 2: Convert to fraction form
    2,831.28/4,246.30 = 882.42/x
  3. Step 3: Cross multiply
    2,831.28x = 4,246.30 × 882.42
  4. Step 4: Simplify right side
    2,831.28x = 3,747,020.05
  5. Step 5: Solve for x
    x = 3,747,020.05/2,831.28
  6. Step 6: Final answer
    x = 1,323.44

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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.