Home / 2,238.42-3,089.19-1,575.51

Finding the Fourth Proportional to 2,238.42, 3,089.19 and 1,575.51

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Solution

The fourth proportional to 2,238.42, 3,089.19 and 1,575.51 is: 2,174.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.42 : 3,089.19 = 1,575.51 : x
  2. Step 2: Convert to fraction form
    2,238.42/3,089.19 = 1,575.51/x
  3. Step 3: Cross multiply
    2,238.42x = 3,089.19 × 1,575.51
  4. Step 4: Simplify right side
    2,238.42x = 4,867,049.74
  5. Step 5: Solve for x
    x = 4,867,049.74/2,238.42
  6. Step 6: Final answer
    x = 2,174.32

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1.5x scale

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.