Home / 3,312.67-4,969.01-1,121.41

Finding the Fourth Proportional to 3,312.67, 4,969.01 and 1,121.41

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Solution

The fourth proportional to 3,312.67, 4,969.01 and 1,121.41 is: 1,682.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.67 : 4,969.01 = 1,121.41 : x
  2. Step 2: Convert to fraction form
    3,312.67/4,969.01 = 1,121.41/x
  3. Step 3: Cross multiply
    3,312.67x = 4,969.01 × 1,121.41
  4. Step 4: Simplify right side
    3,312.67x = 5,572,297.50
  5. Step 5: Solve for x
    x = 5,572,297.50/3,312.67
  6. Step 6: Final answer
    x = 1,682.12

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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.