Home / 3,079.85-4,621.60-1,230.68

Finding the Fourth Proportional to 3,079.85, 4,621.60 and 1,230.68

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Solution

The fourth proportional to 3,079.85, 4,621.60 and 1,230.68 is: 1,846.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.85 : 4,621.60 = 1,230.68 : x
  2. Step 2: Convert to fraction form
    3,079.85/4,621.60 = 1,230.68/x
  3. Step 3: Cross multiply
    3,079.85x = 4,621.60 × 1,230.68
  4. Step 4: Simplify right side
    3,079.85x = 5,687,710.69
  5. Step 5: Solve for x
    x = 5,687,710.69/3,079.85
  6. Step 6: Final answer
    x = 1,846.75

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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.