Home / 7,759.71-10,708.47-4,222.85

Finding the Fourth Proportional to 7,759.71, 10,708.47 and 4,222.85

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Solution

The fourth proportional to 7,759.71, 10,708.47 and 4,222.85 is: 5,827.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.71 : 10,708.47 = 4,222.85 : x
  2. Step 2: Convert to fraction form
    7,759.71/10,708.47 = 4,222.85/x
  3. Step 3: Cross multiply
    7,759.71x = 10,708.47 × 4,222.85
  4. Step 4: Simplify right side
    7,759.71x = 45,220,209.00
  5. Step 5: Solve for x
    x = 45,220,209.00/7,759.71
  6. Step 6: Final answer
    x = 5,827.56

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Double scale
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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.