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Finding the Fourth Proportional to 4,939, 7,408.72 and 2,746.08

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Solution

The fourth proportional to 4,939, 7,408.72 and 2,746.08 is: 4,119.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939 : 7,408.72 = 2,746.08 : x
  2. Step 2: Convert to fraction form
    4,939/7,408.72 = 2,746.08/x
  3. Step 3: Cross multiply
    4,939x = 7,408.72 × 2,746.08
  4. Step 4: Simplify right side
    4,939x = 20,344,937.82
  5. Step 5: Solve for x
    x = 20,344,937.82/4,939
  6. Step 6: Final answer
    x = 4,119.24

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