Home / 5,119.78-7,048.23-4,884.68

Finding the Fourth Proportional to 5,119.78, 7,048.23 and 4,884.68

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Solution

The fourth proportional to 5,119.78, 7,048.23 and 4,884.68 is: 6,724.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.78 : 7,048.23 = 4,884.68 : x
  2. Step 2: Convert to fraction form
    5,119.78/7,048.23 = 4,884.68/x
  3. Step 3: Cross multiply
    5,119.78x = 7,048.23 × 4,884.68
  4. Step 4: Simplify right side
    5,119.78x = 34,428,348.12
  5. Step 5: Solve for x
    x = 34,428,348.12/5,119.78
  6. Step 6: Final answer
    x = 6,724.58

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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.