Home / 2,154.33-3,231.79-1,058.74

Finding the Fourth Proportional to 2,154.33, 3,231.79 and 1,058.74

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Solution

The fourth proportional to 2,154.33, 3,231.79 and 1,058.74 is: 1,588.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.33 : 3,231.79 = 1,058.74 : x
  2. Step 2: Convert to fraction form
    2,154.33/3,231.79 = 1,058.74/x
  3. Step 3: Cross multiply
    2,154.33x = 3,231.79 × 1,058.74
  4. Step 4: Simplify right side
    2,154.33x = 3,421,614.62
  5. Step 5: Solve for x
    x = 3,421,614.62/2,154.33
  6. Step 6: Final answer
    x = 1,588.25

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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.