Home / 7,738.84-10,679.62-4,202.08

Finding the Fourth Proportional to 7,738.84, 10,679.62 and 4,202.08

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Solution

The fourth proportional to 7,738.84, 10,679.62 and 4,202.08 is: 5,798.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.84 : 10,679.62 = 4,202.08 : x
  2. Step 2: Convert to fraction form
    7,738.84/10,679.62 = 4,202.08/x
  3. Step 3: Cross multiply
    7,738.84x = 10,679.62 × 4,202.08
  4. Step 4: Simplify right side
    7,738.84x = 44,876,617.61
  5. Step 5: Solve for x
    x = 44,876,617.61/7,738.84
  6. Step 6: Final answer
    x = 5,798.88

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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.