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Finding the Fourth Proportional to 7,307.62, 10,965.38 and 3,151.71

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Solution

The fourth proportional to 7,307.62, 10,965.38 and 3,151.71 is: 4,729.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,307.62 : 10,965.38 = 3,151.71 : x
  2. Step 2: Convert to fraction form
    7,307.62/10,965.38 = 3,151.71/x
  3. Step 3: Cross multiply
    7,307.62x = 10,965.38 × 3,151.71
  4. Step 4: Simplify right side
    7,307.62x = 34,559,682.04
  5. Step 5: Solve for x
    x = 34,559,682.04/7,307.62
  6. Step 6: Final answer
    x = 4,729.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.