Home / 7,217.28-9,960.64-4,233.60

Finding the Fourth Proportional to 7,217.28, 9,960.64 and 4,233.60

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Solution

The fourth proportional to 7,217.28, 9,960.64 and 4,233.60 is: 5,842.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.28 : 9,960.64 = 4,233.60 : x
  2. Step 2: Convert to fraction form
    7,217.28/9,960.64 = 4,233.60/x
  3. Step 3: Cross multiply
    7,217.28x = 9,960.64 × 4,233.60
  4. Step 4: Simplify right side
    7,217.28x = 42,169,365.50
  5. Step 5: Solve for x
    x = 42,169,365.50/7,217.28
  6. Step 6: Final answer
    x = 5,842.83

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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.