Home / 6,386.50-9,579.80-2,226.59

Finding the Fourth Proportional to 6,386.50, 9,579.80 and 2,226.59

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Solution

The fourth proportional to 6,386.50, 9,579.80 and 2,226.59 is: 3,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.50 : 9,579.80 = 2,226.59 : x
  2. Step 2: Convert to fraction form
    6,386.50/9,579.80 = 2,226.59/x
  3. Step 3: Cross multiply
    6,386.50x = 9,579.80 × 2,226.59
  4. Step 4: Simplify right side
    6,386.50x = 21,330,280.47
  5. Step 5: Solve for x
    x = 21,330,280.47/6,386.50
  6. Step 6: Final answer
    x = 3,339.90

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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.