Home / 1,691.07-2,536.57-1,401.90

Finding the Fourth Proportional to 1,691.07, 2,536.57 and 1,401.90

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Solution

The fourth proportional to 1,691.07, 2,536.57 and 1,401.90 is: 2,102.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.07 : 2,536.57 = 1,401.90 : x
  2. Step 2: Convert to fraction form
    1,691.07/2,536.57 = 1,401.90/x
  3. Step 3: Cross multiply
    1,691.07x = 2,536.57 × 1,401.90
  4. Step 4: Simplify right side
    1,691.07x = 3,556,017.48
  5. Step 5: Solve for x
    x = 3,556,017.48/1,691.07
  6. Step 6: Final answer
    x = 2,102.82

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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.