Home / 3,109.29-4,664.76-1,135.10

Finding the Fourth Proportional to 3,109.29, 4,664.76 and 1,135.10

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Solution

The fourth proportional to 3,109.29, 4,664.76 and 1,135.10 is: 1,702.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.29 : 4,664.76 = 1,135.10 : x
  2. Step 2: Convert to fraction form
    3,109.29/4,664.76 = 1,135.10/x
  3. Step 3: Cross multiply
    3,109.29x = 4,664.76 × 1,135.10
  4. Step 4: Simplify right side
    3,109.29x = 5,294,969.08
  5. Step 5: Solve for x
    x = 5,294,969.08/3,109.29
  6. Step 6: Final answer
    x = 1,702.95

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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.