Home / 2,206.98-3,311.28-1,329.35

Finding the Fourth Proportional to 2,206.98, 3,311.28 and 1,329.35

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Solution

The fourth proportional to 2,206.98, 3,311.28 and 1,329.35 is: 1,994.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.98 : 3,311.28 = 1,329.35 : x
  2. Step 2: Convert to fraction form
    2,206.98/3,311.28 = 1,329.35/x
  3. Step 3: Cross multiply
    2,206.98x = 3,311.28 × 1,329.35
  4. Step 4: Simplify right side
    2,206.98x = 4,401,833.51
  5. Step 5: Solve for x
    x = 4,401,833.51/2,206.98
  6. Step 6: Final answer
    x = 1,994.51

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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.