Home / 4,758.85-7,139.66-1,984.09

Finding the Fourth Proportional to 4,758.85, 7,139.66 and 1,984.09

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Solution

The fourth proportional to 4,758.85, 7,139.66 and 1,984.09 is: 2,976.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,758.85 : 7,139.66 = 1,984.09 : x
  2. Step 2: Convert to fraction form
    4,758.85/7,139.66 = 1,984.09/x
  3. Step 3: Cross multiply
    4,758.85x = 7,139.66 × 1,984.09
  4. Step 4: Simplify right side
    4,758.85x = 14,165,728.01
  5. Step 5: Solve for x
    x = 14,165,728.01/4,758.85
  6. Step 6: Final answer
    x = 2,976.71

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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.