Home / 3,077.80-4,617.30-1,228.60

Finding the Fourth Proportional to 3,077.80, 4,617.30 and 1,228.60

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Solution

The fourth proportional to 3,077.80, 4,617.30 and 1,228.60 is: 1,843.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.80 : 4,617.30 = 1,228.60 : x
  2. Step 2: Convert to fraction form
    3,077.80/4,617.30 = 1,228.60/x
  3. Step 3: Cross multiply
    3,077.80x = 4,617.30 × 1,228.60
  4. Step 4: Simplify right side
    3,077.80x = 5,672,814.78
  5. Step 5: Solve for x
    x = 5,672,814.78/3,077.80
  6. Step 6: Final answer
    x = 1,843.14

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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.