Home / 4,928.78-7,387.68-2,465.66

Finding the Fourth Proportional to 4,928.78, 7,387.68 and 2,465.66

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Solution

The fourth proportional to 4,928.78, 7,387.68 and 2,465.66 is: 3,695.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.78 : 7,387.68 = 2,465.66 : x
  2. Step 2: Convert to fraction form
    4,928.78/7,387.68 = 2,465.66/x
  3. Step 3: Cross multiply
    4,928.78x = 7,387.68 × 2,465.66
  4. Step 4: Simplify right side
    4,928.78x = 18,215,507.07
  5. Step 5: Solve for x
    x = 18,215,507.07/4,928.78
  6. Step 6: Final answer
    x = 3,695.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.