Home / 2,113.26-3,168.50-1,140.06

Finding the Fourth Proportional to 2,113.26, 3,168.50 and 1,140.06

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Solution

The fourth proportional to 2,113.26, 3,168.50 and 1,140.06 is: 1,709.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.26 : 3,168.50 = 1,140.06 : x
  2. Step 2: Convert to fraction form
    2,113.26/3,168.50 = 1,140.06/x
  3. Step 3: Cross multiply
    2,113.26x = 3,168.50 × 1,140.06
  4. Step 4: Simplify right side
    2,113.26x = 3,612,280.11
  5. Step 5: Solve for x
    x = 3,612,280.11/2,113.26
  6. Step 6: Final answer
    x = 1,709.34

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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.