Home / 3,239.30-4,470.23-1,913.09

Finding the Fourth Proportional to 3,239.30, 4,470.23 and 1,913.09

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Solution

The fourth proportional to 3,239.30, 4,470.23 and 1,913.09 is: 2,640.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.30 : 4,470.23 = 1,913.09 : x
  2. Step 2: Convert to fraction form
    3,239.30/4,470.23 = 1,913.09/x
  3. Step 3: Cross multiply
    3,239.30x = 4,470.23 × 1,913.09
  4. Step 4: Simplify right side
    3,239.30x = 8,551,920.39
  5. Step 5: Solve for x
    x = 8,551,920.39/3,239.30
  6. Step 6: Final answer
    x = 2,640.06

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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.