Home / 3,401.16-5,101.75-1,209.91

Finding the Fourth Proportional to 3,401.16, 5,101.75 and 1,209.91

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Solution

The fourth proportional to 3,401.16, 5,101.75 and 1,209.91 is: 1,814.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.16 : 5,101.75 = 1,209.91 : x
  2. Step 2: Convert to fraction form
    3,401.16/5,101.75 = 1,209.91/x
  3. Step 3: Cross multiply
    3,401.16x = 5,101.75 × 1,209.91
  4. Step 4: Simplify right side
    3,401.16x = 6,172,665.91
  5. Step 5: Solve for x
    x = 6,172,665.91/3,401.16
  6. Step 6: Final answer
    x = 1,814.87

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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.