Home / 2,166.16-2,989.31-1,171.44

Finding the Fourth Proportional to 2,166.16, 2,989.31 and 1,171.44

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Solution

The fourth proportional to 2,166.16, 2,989.31 and 1,171.44 is: 1,616.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.16 : 2,989.31 = 1,171.44 : x
  2. Step 2: Convert to fraction form
    2,166.16/2,989.31 = 1,171.44/x
  3. Step 3: Cross multiply
    2,166.16x = 2,989.31 × 1,171.44
  4. Step 4: Simplify right side
    2,166.16x = 3,501,794.38
  5. Step 5: Solve for x
    x = 3,501,794.38/2,166.16
  6. Step 6: Final answer
    x = 1,616.59

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1.5x scale

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.