Home / 6,680.90-10,021.12-3,172.59

Finding the Fourth Proportional to 6,680.90, 10,021.12 and 3,172.59

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Solution

The fourth proportional to 6,680.90, 10,021.12 and 3,172.59 is: 4,758.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,680.90 : 10,021.12 = 3,172.59 : x
  2. Step 2: Convert to fraction form
    6,680.90/10,021.12 = 3,172.59/x
  3. Step 3: Cross multiply
    6,680.90x = 10,021.12 × 3,172.59
  4. Step 4: Simplify right side
    6,680.90x = 31,792,897.17
  5. Step 5: Solve for x
    x = 31,792,897.17/6,680.90
  6. Step 6: Final answer
    x = 4,758.77

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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.