Home / 7,759.20-10,707.78-4,571.88

Finding the Fourth Proportional to 7,759.20, 10,707.78 and 4,571.88

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Solution

The fourth proportional to 7,759.20, 10,707.78 and 4,571.88 is: 6,309.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.20 : 10,707.78 = 4,571.88 : x
  2. Step 2: Convert to fraction form
    7,759.20/10,707.78 = 4,571.88/x
  3. Step 3: Cross multiply
    7,759.20x = 10,707.78 × 4,571.88
  4. Step 4: Simplify right side
    7,759.20x = 48,954,685.23
  5. Step 5: Solve for x
    x = 48,954,685.23/7,759.20
  6. Step 6: Final answer
    x = 6,309.24

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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.