Home / 4,919.50-7,374.39-2,317.78

Finding the Fourth Proportional to 4,919.50, 7,374.39 and 2,317.78

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Solution

The fourth proportional to 4,919.50, 7,374.39 and 2,317.78 is: 3,474.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.50 : 7,374.39 = 2,317.78 : x
  2. Step 2: Convert to fraction form
    4,919.50/7,374.39 = 2,317.78/x
  3. Step 3: Cross multiply
    4,919.50x = 7,374.39 × 2,317.78
  4. Step 4: Simplify right side
    4,919.50x = 17,092,213.65
  5. Step 5: Solve for x
    x = 17,092,213.65/4,919.50
  6. Step 6: Final answer
    x = 3,474.38

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1.5x scale

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.