Home / 3,107.59-4,661.40-1,377.43

Finding the Fourth Proportional to 3,107.59, 4,661.40 and 1,377.43

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Solution

The fourth proportional to 3,107.59, 4,661.40 and 1,377.43 is: 2,066.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.59 : 4,661.40 = 1,377.43 : x
  2. Step 2: Convert to fraction form
    3,107.59/4,661.40 = 1,377.43/x
  3. Step 3: Cross multiply
    3,107.59x = 4,661.40 × 1,377.43
  4. Step 4: Simplify right side
    3,107.59x = 6,420,752.20
  5. Step 5: Solve for x
    x = 6,420,752.20/3,107.59
  6. Step 6: Final answer
    x = 2,066.15

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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.