Home / 5,458.98-8,192.13-2,172.78

Finding the Fourth Proportional to 5,458.98, 8,192.13 and 2,172.78

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Solution

The fourth proportional to 5,458.98, 8,192.13 and 2,172.78 is: 3,260.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.98 : 8,192.13 = 2,172.78 : x
  2. Step 2: Convert to fraction form
    5,458.98/8,192.13 = 2,172.78/x
  3. Step 3: Cross multiply
    5,458.98x = 8,192.13 × 2,172.78
  4. Step 4: Simplify right side
    5,458.98x = 17,799,696.22
  5. Step 5: Solve for x
    x = 17,799,696.22/5,458.98
  6. Step 6: Final answer
    x = 3,260.63

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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.