Home / 7,144.07-10,719.75-3,449.46

Finding the Fourth Proportional to 7,144.07, 10,719.75 and 3,449.46

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Solution

The fourth proportional to 7,144.07, 10,719.75 and 3,449.46 is: 5,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.07 : 10,719.75 = 3,449.46 : x
  2. Step 2: Convert to fraction form
    7,144.07/10,719.75 = 3,449.46/x
  3. Step 3: Cross multiply
    7,144.07x = 10,719.75 × 3,449.46
  4. Step 4: Simplify right side
    7,144.07x = 36,977,308.64
  5. Step 5: Solve for x
    x = 36,977,308.64/7,144.07
  6. Step 6: Final answer
    x = 5,175.95

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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.