Home / 7,217.21-9,959.79-4,233.09

Finding the Fourth Proportional to 7,217.21, 9,959.79 and 4,233.09

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Solution

The fourth proportional to 7,217.21, 9,959.79 and 4,233.09 is: 5,841.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.21 : 9,959.79 = 4,233.09 : x
  2. Step 2: Convert to fraction form
    7,217.21/9,959.79 = 4,233.09/x
  3. Step 3: Cross multiply
    7,217.21x = 9,959.79 × 4,233.09
  4. Step 4: Simplify right side
    7,217.21x = 42,160,687.45
  5. Step 5: Solve for x
    x = 42,160,687.45/7,217.21
  6. Step 6: Final answer
    x = 5,841.69

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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.