Home / 2,166.23-2,989.38-1,171.50

Finding the Fourth Proportional to 2,166.23, 2,989.38 and 1,171.50

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Solution

The fourth proportional to 2,166.23, 2,989.38 and 1,171.50 is: 1,616.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.23 : 2,989.38 = 1,171.50 : x
  2. Step 2: Convert to fraction form
    2,166.23/2,989.38 = 1,171.50/x
  3. Step 3: Cross multiply
    2,166.23x = 2,989.38 × 1,171.50
  4. Step 4: Simplify right side
    2,166.23x = 3,502,058.67
  5. Step 5: Solve for x
    x = 3,502,058.67/2,166.23
  6. Step 6: Final answer
    x = 1,616.66

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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.