Home / 5,077.44-7,616.72-1,379.76

Finding the Fourth Proportional to 5,077.44, 7,616.72 and 1,379.76

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Solution

The fourth proportional to 5,077.44, 7,616.72 and 1,379.76 is: 2,069.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.44 : 7,616.72 = 1,379.76 : x
  2. Step 2: Convert to fraction form
    5,077.44/7,616.72 = 1,379.76/x
  3. Step 3: Cross multiply
    5,077.44x = 7,616.72 × 1,379.76
  4. Step 4: Simplify right side
    5,077.44x = 10,509,245.59
  5. Step 5: Solve for x
    x = 10,509,245.59/5,077.44
  6. Step 6: Final answer
    x = 2,069.79

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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.