Home / 2,166.89-3,247.29-2,126.79

Finding the Fourth Proportional to 2,166.89, 3,247.29 and 2,126.79

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Solution

The fourth proportional to 2,166.89, 3,247.29 and 2,126.79 is: 3,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.89 : 3,247.29 = 2,126.79 : x
  2. Step 2: Convert to fraction form
    2,166.89/3,247.29 = 2,126.79/x
  3. Step 3: Cross multiply
    2,166.89x = 3,247.29 × 2,126.79
  4. Step 4: Simplify right side
    2,166.89x = 6,906,303.90
  5. Step 5: Solve for x
    x = 6,906,303.90/2,166.89
  6. Step 6: Final answer
    x = 3,187.20

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1.5x scale

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.