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Finding the Fourth Proportional to 6,722.16, 9,275.84 and 3,738.12

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Solution

The fourth proportional to 6,722.16, 9,275.84 and 3,738.12 is: 5,158.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,722.16 : 9,275.84 = 3,738.12 : x
  2. Step 2: Convert to fraction form
    6,722.16/9,275.84 = 3,738.12/x
  3. Step 3: Cross multiply
    6,722.16x = 9,275.84 × 3,738.12
  4. Step 4: Simplify right side
    6,722.16x = 34,674,203.02
  5. Step 5: Solve for x
    x = 34,674,203.02/6,722.16
  6. Step 6: Final answer
    x = 5,158.19

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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.