Home / 9,215.79-13,823.78-2,290.29

Finding the Fourth Proportional to 9,215.79, 13,823.78 and 2,290.29

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Solution

The fourth proportional to 9,215.79, 13,823.78 and 2,290.29 is: 3,435.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.79 : 13,823.78 = 2,290.29 : x
  2. Step 2: Convert to fraction form
    9,215.79/13,823.78 = 2,290.29/x
  3. Step 3: Cross multiply
    9,215.79x = 13,823.78 × 2,290.29
  4. Step 4: Simplify right side
    9,215.79x = 31,660,453.64
  5. Step 5: Solve for x
    x = 31,660,453.64/9,215.79
  6. Step 6: Final answer
    x = 3,435.46

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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.