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Finding the Fourth Proportional to 7,308.08, 10,085.13 and 3,950.88

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Solution

The fourth proportional to 7,308.08, 10,085.13 and 3,950.88 is: 5,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,308.08 : 10,085.13 = 3,950.88 : x
  2. Step 2: Convert to fraction form
    7,308.08/10,085.13 = 3,950.88/x
  3. Step 3: Cross multiply
    7,308.08x = 10,085.13 × 3,950.88
  4. Step 4: Simplify right side
    7,308.08x = 39,845,138.41
  5. Step 5: Solve for x
    x = 39,845,138.41/7,308.08
  6. Step 6: Final answer
    x = 5,452.20

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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.