Home / 4,077.80-6,118.73-1,612.70

Finding the Fourth Proportional to 4,077.80, 6,118.73 and 1,612.70

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Solution

The fourth proportional to 4,077.80, 6,118.73 and 1,612.70 is: 2,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,077.80 : 6,118.73 = 1,612.70 : x
  2. Step 2: Convert to fraction form
    4,077.80/6,118.73 = 1,612.70/x
  3. Step 3: Cross multiply
    4,077.80x = 6,118.73 × 1,612.70
  4. Step 4: Simplify right side
    4,077.80x = 9,867,675.87
  5. Step 5: Solve for x
    x = 9,867,675.87/4,077.80
  6. Step 6: Final answer
    x = 2,419.85

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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.