Home / 5,183.76-7,775.48-2,985.68

Finding the Fourth Proportional to 5,183.76, 7,775.48 and 2,985.68

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Solution

The fourth proportional to 5,183.76, 7,775.48 and 2,985.68 is: 4,478.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.76 : 7,775.48 = 2,985.68 : x
  2. Step 2: Convert to fraction form
    5,183.76/7,775.48 = 2,985.68/x
  3. Step 3: Cross multiply
    5,183.76x = 7,775.48 × 2,985.68
  4. Step 4: Simplify right side
    5,183.76x = 23,215,095.13
  5. Step 5: Solve for x
    x = 23,215,095.13/5,183.76
  6. Step 6: Final answer
    x = 4,478.43

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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.