Home / 2,152.33-3,228.49-1,421.73

Finding the Fourth Proportional to 2,152.33, 3,228.49 and 1,421.73

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Solution

The fourth proportional to 2,152.33, 3,228.49 and 1,421.73 is: 2,132.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.33 : 3,228.49 = 1,421.73 : x
  2. Step 2: Convert to fraction form
    2,152.33/3,228.49 = 1,421.73/x
  3. Step 3: Cross multiply
    2,152.33x = 3,228.49 × 1,421.73
  4. Step 4: Simplify right side
    2,152.33x = 4,590,041.09
  5. Step 5: Solve for x
    x = 4,590,041.09/2,152.33
  6. Step 6: Final answer
    x = 2,132.59

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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.