Home / 2,109.02-3,163.53-1,068.86

Finding the Fourth Proportional to 2,109.02, 3,163.53 and 1,068.86

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Solution

The fourth proportional to 2,109.02, 3,163.53 and 1,068.86 is: 1,603.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.02 : 3,163.53 = 1,068.86 : x
  2. Step 2: Convert to fraction form
    2,109.02/3,163.53 = 1,068.86/x
  3. Step 3: Cross multiply
    2,109.02x = 3,163.53 × 1,068.86
  4. Step 4: Simplify right side
    2,109.02x = 3,381,370.68
  5. Step 5: Solve for x
    x = 3,381,370.68/2,109.02
  6. Step 6: Final answer
    x = 1,603.29

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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.