Home / 6,721.75-9,274.50-4,068.60

Finding the Fourth Proportional to 6,721.75, 9,274.50 and 4,068.60

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Solution

The fourth proportional to 6,721.75, 9,274.50 and 4,068.60 is: 5,613.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.75 : 9,274.50 = 4,068.60 : x
  2. Step 2: Convert to fraction form
    6,721.75/9,274.50 = 4,068.60/x
  3. Step 3: Cross multiply
    6,721.75x = 9,274.50 × 4,068.60
  4. Step 4: Simplify right side
    6,721.75x = 37,734,230.70
  5. Step 5: Solve for x
    x = 37,734,230.70/6,721.75
  6. Step 6: Final answer
    x = 5,613.75

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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.