Home / 5,185.49-7,778.19-2,410.61

Finding the Fourth Proportional to 5,185.49, 7,778.19 and 2,410.61

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Solution

The fourth proportional to 5,185.49, 7,778.19 and 2,410.61 is: 3,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.49 : 7,778.19 = 2,410.61 : x
  2. Step 2: Convert to fraction form
    5,185.49/7,778.19 = 2,410.61/x
  3. Step 3: Cross multiply
    5,185.49x = 7,778.19 × 2,410.61
  4. Step 4: Simplify right side
    5,185.49x = 18,750,176.16
  5. Step 5: Solve for x
    x = 18,750,176.16/5,185.49
  6. Step 6: Final answer
    x = 3,615.90

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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.