Home / 7,329.83-10,115.28-4,142.48

Finding the Fourth Proportional to 7,329.83, 10,115.28 and 4,142.48

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Solution

The fourth proportional to 7,329.83, 10,115.28 and 4,142.48 is: 5,716.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.83 : 10,115.28 = 4,142.48 : x
  2. Step 2: Convert to fraction form
    7,329.83/10,115.28 = 4,142.48/x
  3. Step 3: Cross multiply
    7,329.83x = 10,115.28 × 4,142.48
  4. Step 4: Simplify right side
    7,329.83x = 41,902,294.52
  5. Step 5: Solve for x
    x = 41,902,294.52/7,329.83
  6. Step 6: Final answer
    x = 5,716.68

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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.