Home / 6,821.46-10,219.59-3,531.06

Finding the Fourth Proportional to 6,821.46, 10,219.59 and 3,531.06

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Solution

The fourth proportional to 6,821.46, 10,219.59 and 3,531.06 is: 5,290.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.46 : 10,219.59 = 3,531.06 : x
  2. Step 2: Convert to fraction form
    6,821.46/10,219.59 = 3,531.06/x
  3. Step 3: Cross multiply
    6,821.46x = 10,219.59 × 3,531.06
  4. Step 4: Simplify right side
    6,821.46x = 36,085,985.47
  5. Step 5: Solve for x
    x = 36,085,985.47/6,821.46
  6. Step 6: Final answer
    x = 5,290.07

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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.