Home / 6,722.42-9,276.36-3,738.20

Finding the Fourth Proportional to 6,722.42, 9,276.36 and 3,738.20

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Solution

The fourth proportional to 6,722.42, 9,276.36 and 3,738.20 is: 5,158.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,722.42 : 9,276.36 = 3,738.20 : x
  2. Step 2: Convert to fraction form
    6,722.42/9,276.36 = 3,738.20/x
  3. Step 3: Cross multiply
    6,722.42x = 9,276.36 × 3,738.20
  4. Step 4: Simplify right side
    6,722.42x = 34,676,888.95
  5. Step 5: Solve for x
    x = 34,676,888.95/6,722.42
  6. Step 6: Final answer
    x = 5,158.39

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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.