Home / 6,940.19-9,578.39-3,915.93

Finding the Fourth Proportional to 6,940.19, 9,578.39 and 3,915.93

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Solution

The fourth proportional to 6,940.19, 9,578.39 and 3,915.93 is: 5,404.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.19 : 9,578.39 = 3,915.93 : x
  2. Step 2: Convert to fraction form
    6,940.19/9,578.39 = 3,915.93/x
  3. Step 3: Cross multiply
    6,940.19x = 9,578.39 × 3,915.93
  4. Step 4: Simplify right side
    6,940.19x = 37,508,304.75
  5. Step 5: Solve for x
    x = 37,508,304.75/6,940.19
  6. Step 6: Final answer
    x = 5,404.51

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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.