Home / 4,919.34-7,381.07-2,948.78

Finding the Fourth Proportional to 4,919.34, 7,381.07 and 2,948.78

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Solution

The fourth proportional to 4,919.34, 7,381.07 and 2,948.78 is: 4,424.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.34 : 7,381.07 = 2,948.78 : x
  2. Step 2: Convert to fraction form
    4,919.34/7,381.07 = 2,948.78/x
  3. Step 3: Cross multiply
    4,919.34x = 7,381.07 × 2,948.78
  4. Step 4: Simplify right side
    4,919.34x = 21,765,099.95
  5. Step 5: Solve for x
    x = 21,765,099.95/4,919.34
  6. Step 6: Final answer
    x = 4,424.39

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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.