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Finding the Fourth Proportional to 2,831.50, 4,247.73 and 883.32

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Solution

The fourth proportional to 2,831.50, 4,247.73 and 883.32 is: 1,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.50 : 4,247.73 = 883.32 : x
  2. Step 2: Convert to fraction form
    2,831.50/4,247.73 = 883.32/x
  3. Step 3: Cross multiply
    2,831.50x = 4,247.73 × 883.32
  4. Step 4: Simplify right side
    2,831.50x = 3,752,104.86
  5. Step 5: Solve for x
    x = 3,752,104.86/2,831.50
  6. Step 6: Final answer
    x = 1,325.13

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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.