Home / 1,642.14-2,462.31-1,122.73

Finding the Fourth Proportional to 1,642.14, 2,462.31 and 1,122.73

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Solution

The fourth proportional to 1,642.14, 2,462.31 and 1,122.73 is: 1,683.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642.14 : 2,462.31 = 1,122.73 : x
  2. Step 2: Convert to fraction form
    1,642.14/2,462.31 = 1,122.73/x
  3. Step 3: Cross multiply
    1,642.14x = 2,462.31 × 1,122.73
  4. Step 4: Simplify right side
    1,642.14x = 2,764,509.31
  5. Step 5: Solve for x
    x = 2,764,509.31/1,642.14
  6. Step 6: Final answer
    x = 1,683.48

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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.