Home / 4,947.80-6,831.16-4,415.78

Finding the Fourth Proportional to 4,947.80, 6,831.16 and 4,415.78

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Solution

The fourth proportional to 4,947.80, 6,831.16 and 4,415.78 is: 6,096.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.80 : 6,831.16 = 4,415.78 : x
  2. Step 2: Convert to fraction form
    4,947.80/6,831.16 = 4,415.78/x
  3. Step 3: Cross multiply
    4,947.80x = 6,831.16 × 4,415.78
  4. Step 4: Simplify right side
    4,947.80x = 30,164,899.70
  5. Step 5: Solve for x
    x = 30,164,899.70/4,947.80
  6. Step 6: Final answer
    x = 6,096.63

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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.