Home / 4,919.49-7,381.40-2,578.93

Finding the Fourth Proportional to 4,919.49, 7,381.40 and 2,578.93

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Solution

The fourth proportional to 4,919.49, 7,381.40 and 2,578.93 is: 3,869.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.49 : 7,381.40 = 2,578.93 : x
  2. Step 2: Convert to fraction form
    4,919.49/7,381.40 = 2,578.93/x
  3. Step 3: Cross multiply
    4,919.49x = 7,381.40 × 2,578.93
  4. Step 4: Simplify right side
    4,919.49x = 19,036,113.90
  5. Step 5: Solve for x
    x = 19,036,113.90/4,919.49
  6. Step 6: Final answer
    x = 3,869.53

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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.