Home / 6,780.85-10,172.84-3,084.15

Finding the Fourth Proportional to 6,780.85, 10,172.84 and 3,084.15

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Solution

The fourth proportional to 6,780.85, 10,172.84 and 3,084.15 is: 4,626.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.85 : 10,172.84 = 3,084.15 : x
  2. Step 2: Convert to fraction form
    6,780.85/10,172.84 = 3,084.15/x
  3. Step 3: Cross multiply
    6,780.85x = 10,172.84 × 3,084.15
  4. Step 4: Simplify right side
    6,780.85x = 31,374,564.49
  5. Step 5: Solve for x
    x = 31,374,564.49/6,780.85
  6. Step 6: Final answer
    x = 4,626.94

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1.5x scale

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.