Home / 2,167.06-2,989.26-1,328.14

Finding the Fourth Proportional to 2,167.06, 2,989.26 and 1,328.14

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Solution

The fourth proportional to 2,167.06, 2,989.26 and 1,328.14 is: 1,832.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.06 : 2,989.26 = 1,328.14 : x
  2. Step 2: Convert to fraction form
    2,167.06/2,989.26 = 1,328.14/x
  3. Step 3: Cross multiply
    2,167.06x = 2,989.26 × 1,328.14
  4. Step 4: Simplify right side
    2,167.06x = 3,970,155.78
  5. Step 5: Solve for x
    x = 3,970,155.78/2,167.06
  6. Step 6: Final answer
    x = 1,832.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.