Home / 7,218.53-9,961.49-4,233.79

Finding the Fourth Proportional to 7,218.53, 9,961.49 and 4,233.79

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Solution

The fourth proportional to 7,218.53, 9,961.49 and 4,233.79 is: 5,842.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.53 : 9,961.49 = 4,233.79 : x
  2. Step 2: Convert to fraction form
    7,218.53/9,961.49 = 4,233.79/x
  3. Step 3: Cross multiply
    7,218.53x = 9,961.49 × 4,233.79
  4. Step 4: Simplify right side
    7,218.53x = 42,174,856.75
  5. Step 5: Solve for x
    x = 42,174,856.75/7,218.53
  6. Step 6: Final answer
    x = 5,842.59

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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.