Home / 6,721.25-9,274.80-3,736.90

Finding the Fourth Proportional to 6,721.25, 9,274.80 and 3,736.90

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Solution

The fourth proportional to 6,721.25, 9,274.80 and 3,736.90 is: 5,156.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.25 : 9,274.80 = 3,736.90 : x
  2. Step 2: Convert to fraction form
    6,721.25/9,274.80 = 3,736.90/x
  3. Step 3: Cross multiply
    6,721.25x = 9,274.80 × 3,736.90
  4. Step 4: Simplify right side
    6,721.25x = 34,658,981.44
  5. Step 5: Solve for x
    x = 34,658,981.44/6,721.25
  6. Step 6: Final answer
    x = 5,156.63

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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.