Home / 3,137.11-4,329.20-1,810.81

Finding the Fourth Proportional to 3,137.11, 4,329.20 and 1,810.81

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Solution

The fourth proportional to 3,137.11, 4,329.20 and 1,810.81 is: 2,498.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.11 : 4,329.20 = 1,810.81 : x
  2. Step 2: Convert to fraction form
    3,137.11/4,329.20 = 1,810.81/x
  3. Step 3: Cross multiply
    3,137.11x = 4,329.20 × 1,810.81
  4. Step 4: Simplify right side
    3,137.11x = 7,839,358.65
  5. Step 5: Solve for x
    x = 7,839,358.65/3,137.11
  6. Step 6: Final answer
    x = 2,498.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.