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Finding the Fourth Proportional to 2,831.70, 4,247.52 and 883.92

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Solution

The fourth proportional to 2,831.70, 4,247.52 and 883.92 is: 1,325.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.70 : 4,247.52 = 883.92 : x
  2. Step 2: Convert to fraction form
    2,831.70/4,247.52 = 883.92/x
  3. Step 3: Cross multiply
    2,831.70x = 4,247.52 × 883.92
  4. Step 4: Simplify right side
    2,831.70x = 3,754,467.88
  5. Step 5: Solve for x
    x = 3,754,467.88/2,831.70
  6. Step 6: Final answer
    x = 1,325.87

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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.