Home / 7,759.46-10,708-4,222.69

Finding the Fourth Proportional to 7,759.46, 10,708 and 4,222.69

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Solution

The fourth proportional to 7,759.46, 10,708 and 4,222.69 is: 5,827.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.46 : 10,708 = 4,222.69 : x
  2. Step 2: Convert to fraction form
    7,759.46/10,708 = 4,222.69/x
  3. Step 3: Cross multiply
    7,759.46x = 10,708 × 4,222.69
  4. Step 4: Simplify right side
    7,759.46x = 45,216,564.52
  5. Step 5: Solve for x
    x = 45,216,564.52/7,759.46
  6. Step 6: Final answer
    x = 5,827.28

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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.