Home / 4,878.36-7,311.04-2,799

Finding the Fourth Proportional to 4,878.36, 7,311.04 and 2,799

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Solution

The fourth proportional to 4,878.36, 7,311.04 and 2,799 is: 4,194.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.36 : 7,311.04 = 2,799 : x
  2. Step 2: Convert to fraction form
    4,878.36/7,311.04 = 2,799/x
  3. Step 3: Cross multiply
    4,878.36x = 7,311.04 × 2,799
  4. Step 4: Simplify right side
    4,878.36x = 20,463,600.96
  5. Step 5: Solve for x
    x = 20,463,600.96/4,878.36
  6. Step 6: Final answer
    x = 4,194.77

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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.