Home / 2,166.12-3,248.01-1,123.54

Finding the Fourth Proportional to 2,166.12, 3,248.01 and 1,123.54

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Solution

The fourth proportional to 2,166.12, 3,248.01 and 1,123.54 is: 1,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.12 : 3,248.01 = 1,123.54 : x
  2. Step 2: Convert to fraction form
    2,166.12/3,248.01 = 1,123.54/x
  3. Step 3: Cross multiply
    2,166.12x = 3,248.01 × 1,123.54
  4. Step 4: Simplify right side
    2,166.12x = 3,649,261.04
  5. Step 5: Solve for x
    x = 3,649,261.04/2,166.12
  6. Step 6: Final answer
    x = 1,684.70

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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.