Home / 2,163.44-3,246.93-1,123.76

Finding the Fourth Proportional to 2,163.44, 3,246.93 and 1,123.76

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Solution

The fourth proportional to 2,163.44, 3,246.93 and 1,123.76 is: 1,686.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.44 : 3,246.93 = 1,123.76 : x
  2. Step 2: Convert to fraction form
    2,163.44/3,246.93 = 1,123.76/x
  3. Step 3: Cross multiply
    2,163.44x = 3,246.93 × 1,123.76
  4. Step 4: Simplify right side
    2,163.44x = 3,648,778.17
  5. Step 5: Solve for x
    x = 3,648,778.17/2,163.44
  6. Step 6: Final answer
    x = 1,686.56

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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.