Home / 5,183.76-7,776.45-2,991.36

Finding the Fourth Proportional to 5,183.76, 7,776.45 and 2,991.36

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Solution

The fourth proportional to 5,183.76, 7,776.45 and 2,991.36 is: 4,487.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.76 : 7,776.45 = 2,991.36 : x
  2. Step 2: Convert to fraction form
    5,183.76/7,776.45 = 2,991.36/x
  3. Step 3: Cross multiply
    5,183.76x = 7,776.45 × 2,991.36
  4. Step 4: Simplify right side
    5,183.76x = 23,262,161.47
  5. Step 5: Solve for x
    x = 23,262,161.47/5,183.76
  6. Step 6: Final answer
    x = 4,487.51

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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.