Home / 6,625.05-9,142.56-3,640.87

Finding the Fourth Proportional to 6,625.05, 9,142.56 and 3,640.87

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Solution

The fourth proportional to 6,625.05, 9,142.56 and 3,640.87 is: 5,024.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,625.05 : 9,142.56 = 3,640.87 : x
  2. Step 2: Convert to fraction form
    6,625.05/9,142.56 = 3,640.87/x
  3. Step 3: Cross multiply
    6,625.05x = 9,142.56 × 3,640.87
  4. Step 4: Simplify right side
    6,625.05x = 33,286,872.43
  5. Step 5: Solve for x
    x = 33,286,872.43/6,625.05
  6. Step 6: Final answer
    x = 5,024.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.