Home / 6,899.47-10,351.71-3,389.11

Finding the Fourth Proportional to 6,899.47, 10,351.71 and 3,389.11

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Solution

The fourth proportional to 6,899.47, 10,351.71 and 3,389.11 is: 5,084.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.47 : 10,351.71 = 3,389.11 : x
  2. Step 2: Convert to fraction form
    6,899.47/10,351.71 = 3,389.11/x
  3. Step 3: Cross multiply
    6,899.47x = 10,351.71 × 3,389.11
  4. Step 4: Simplify right side
    6,899.47x = 35,083,058.00
  5. Step 5: Solve for x
    x = 35,083,058.00/6,899.47
  6. Step 6: Final answer
    x = 5,084.89

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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.