Home / 6,862.36-10,287.39-2,478.79

Finding the Fourth Proportional to 6,862.36, 10,287.39 and 2,478.79

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Solution

The fourth proportional to 6,862.36, 10,287.39 and 2,478.79 is: 3,715.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862.36 : 10,287.39 = 2,478.79 : x
  2. Step 2: Convert to fraction form
    6,862.36/10,287.39 = 2,478.79/x
  3. Step 3: Cross multiply
    6,862.36x = 10,287.39 × 2,478.79
  4. Step 4: Simplify right side
    6,862.36x = 25,500,279.46
  5. Step 5: Solve for x
    x = 25,500,279.46/6,862.36
  6. Step 6: Final answer
    x = 3,715.96

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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.