Home / 7,329.27-10,114.40-3,972.09

Finding the Fourth Proportional to 7,329.27, 10,114.40 and 3,972.09

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Solution

The fourth proportional to 7,329.27, 10,114.40 and 3,972.09 is: 5,481.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.27 : 10,114.40 = 3,972.09 : x
  2. Step 2: Convert to fraction form
    7,329.27/10,114.40 = 3,972.09/x
  3. Step 3: Cross multiply
    7,329.27x = 10,114.40 × 3,972.09
  4. Step 4: Simplify right side
    7,329.27x = 40,175,307.10
  5. Step 5: Solve for x
    x = 40,175,307.10/7,329.27
  6. Step 6: Final answer
    x = 5,481.49

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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.