Home / 4,869.10-6,719.36-2,879.79

Finding the Fourth Proportional to 4,869.10, 6,719.36 and 2,879.79

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Solution

The fourth proportional to 4,869.10, 6,719.36 and 2,879.79 is: 3,974.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.10 : 6,719.36 = 2,879.79 : x
  2. Step 2: Convert to fraction form
    4,869.10/6,719.36 = 2,879.79/x
  3. Step 3: Cross multiply
    4,869.10x = 6,719.36 × 2,879.79
  4. Step 4: Simplify right side
    4,869.10x = 19,350,306.14
  5. Step 5: Solve for x
    x = 19,350,306.14/4,869.10
  6. Step 6: Final answer
    x = 3,974.11

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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.