Home / 6,386.10-9,579.40-2,226.53

Finding the Fourth Proportional to 6,386.10, 9,579.40 and 2,226.53

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Solution

The fourth proportional to 6,386.10, 9,579.40 and 2,226.53 is: 3,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.10 : 9,579.40 = 2,226.53 : x
  2. Step 2: Convert to fraction form
    6,386.10/9,579.40 = 2,226.53/x
  3. Step 3: Cross multiply
    6,386.10x = 9,579.40 × 2,226.53
  4. Step 4: Simplify right side
    6,386.10x = 21,328,815.92
  5. Step 5: Solve for x
    x = 21,328,815.92/6,386.10
  6. Step 6: Final answer
    x = 3,339.88

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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.