Home / 4,951.20-6,831.76-3,182.40

Finding the Fourth Proportional to 4,951.20, 6,831.76 and 3,182.40

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Solution

The fourth proportional to 4,951.20, 6,831.76 and 3,182.40 is: 4,391.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,951.20 : 6,831.76 = 3,182.40 : x
  2. Step 2: Convert to fraction form
    4,951.20/6,831.76 = 3,182.40/x
  3. Step 3: Cross multiply
    4,951.20x = 6,831.76 × 3,182.40
  4. Step 4: Simplify right side
    4,951.20x = 21,741,393.02
  5. Step 5: Solve for x
    x = 21,741,393.02/4,951.20
  6. Step 6: Final answer
    x = 4,391.14

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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.