Home / 3,312.36-4,969.17-1,120.50

Finding the Fourth Proportional to 3,312.36, 4,969.17 and 1,120.50

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Solution

The fourth proportional to 3,312.36, 4,969.17 and 1,120.50 is: 1,680.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.36 : 4,969.17 = 1,120.50 : x
  2. Step 2: Convert to fraction form
    3,312.36/4,969.17 = 1,120.50/x
  3. Step 3: Cross multiply
    3,312.36x = 4,969.17 × 1,120.50
  4. Step 4: Simplify right side
    3,312.36x = 5,567,954.99
  5. Step 5: Solve for x
    x = 5,567,954.99/3,312.36
  6. Step 6: Final answer
    x = 1,680.96

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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.