Home / 7,765.80-10,716.85-4,229.02

Finding the Fourth Proportional to 7,765.80, 10,716.85 and 4,229.02

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Solution

The fourth proportional to 7,765.80, 10,716.85 and 4,229.02 is: 5,836.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.80 : 10,716.85 = 4,229.02 : x
  2. Step 2: Convert to fraction form
    7,765.80/10,716.85 = 4,229.02/x
  3. Step 3: Cross multiply
    7,765.80x = 10,716.85 × 4,229.02
  4. Step 4: Simplify right side
    7,765.80x = 45,321,772.99
  5. Step 5: Solve for x
    x = 45,321,772.99/7,765.80
  6. Step 6: Final answer
    x = 5,836.07

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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.