Home / 3,311.32-4,969.08-1,851.43

Finding the Fourth Proportional to 3,311.32, 4,969.08 and 1,851.43

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Solution

The fourth proportional to 3,311.32, 4,969.08 and 1,851.43 is: 2,778.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.32 : 4,969.08 = 1,851.43 : x
  2. Step 2: Convert to fraction form
    3,311.32/4,969.08 = 1,851.43/x
  3. Step 3: Cross multiply
    3,311.32x = 4,969.08 × 1,851.43
  4. Step 4: Simplify right side
    3,311.32x = 9,199,894.53
  5. Step 5: Solve for x
    x = 9,199,894.53/3,311.32
  6. Step 6: Final answer
    x = 2,778.32

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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.