Home / 3,311.40-4,967.40-1,363.20

Finding the Fourth Proportional to 3,311.40, 4,967.40 and 1,363.20

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Solution

The fourth proportional to 3,311.40, 4,967.40 and 1,363.20 is: 2,044.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.40 : 4,967.40 = 1,363.20 : x
  2. Step 2: Convert to fraction form
    3,311.40/4,967.40 = 1,363.20/x
  3. Step 3: Cross multiply
    3,311.40x = 4,967.40 × 1,363.20
  4. Step 4: Simplify right side
    3,311.40x = 6,771,559.68
  5. Step 5: Solve for x
    x = 6,771,559.68/3,311.40
  6. Step 6: Final answer
    x = 2,044.92

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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.