Home / 2,214.11-3,320.26-1,325.54

Finding the Fourth Proportional to 2,214.11, 3,320.26 and 1,325.54

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Solution

The fourth proportional to 2,214.11, 3,320.26 and 1,325.54 is: 1,987.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.11 : 3,320.26 = 1,325.54 : x
  2. Step 2: Convert to fraction form
    2,214.11/3,320.26 = 1,325.54/x
  3. Step 3: Cross multiply
    2,214.11x = 3,320.26 × 1,325.54
  4. Step 4: Simplify right side
    2,214.11x = 4,401,142.43
  5. Step 5: Solve for x
    x = 4,401,142.43/2,214.11
  6. Step 6: Final answer
    x = 1,987.77

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1.5x scale

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.