Home / 4,881.50-7,322.57-1,919.71

Finding the Fourth Proportional to 4,881.50, 7,322.57 and 1,919.71

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Solution

The fourth proportional to 4,881.50, 7,322.57 and 1,919.71 is: 2,879.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.50 : 7,322.57 = 1,919.71 : x
  2. Step 2: Convert to fraction form
    4,881.50/7,322.57 = 1,919.71/x
  3. Step 3: Cross multiply
    4,881.50x = 7,322.57 × 1,919.71
  4. Step 4: Simplify right side
    4,881.50x = 14,057,174.24
  5. Step 5: Solve for x
    x = 14,057,174.24/4,881.50
  6. Step 6: Final answer
    x = 2,879.69

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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.