Home / 4,878.79-7,317.41-1,591.85

Finding the Fourth Proportional to 4,878.79, 7,317.41 and 1,591.85

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Solution

The fourth proportional to 4,878.79, 7,317.41 and 1,591.85 is: 2,387.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.79 : 7,317.41 = 1,591.85 : x
  2. Step 2: Convert to fraction form
    4,878.79/7,317.41 = 1,591.85/x
  3. Step 3: Cross multiply
    4,878.79x = 7,317.41 × 1,591.85
  4. Step 4: Simplify right side
    4,878.79x = 11,648,229.44
  5. Step 5: Solve for x
    x = 11,648,229.44/4,878.79
  6. Step 6: Final answer
    x = 2,387.53

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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.