Home / 6,679.78-10,026.21-3,172.15

Finding the Fourth Proportional to 6,679.78, 10,026.21 and 3,172.15

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Solution

The fourth proportional to 6,679.78, 10,026.21 and 3,172.15 is: 4,761.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.78 : 10,026.21 = 3,172.15 : x
  2. Step 2: Convert to fraction form
    6,679.78/10,026.21 = 3,172.15/x
  3. Step 3: Cross multiply
    6,679.78x = 10,026.21 × 3,172.15
  4. Step 4: Simplify right side
    6,679.78x = 31,804,642.05
  5. Step 5: Solve for x
    x = 31,804,642.05/6,679.78
  6. Step 6: Final answer
    x = 4,761.33

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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.