Home / 2,289.21-3,428.48-1,671.38

Finding the Fourth Proportional to 2,289.21, 3,428.48 and 1,671.38

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Solution

The fourth proportional to 2,289.21, 3,428.48 and 1,671.38 is: 2,503.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.21 : 3,428.48 = 1,671.38 : x
  2. Step 2: Convert to fraction form
    2,289.21/3,428.48 = 1,671.38/x
  3. Step 3: Cross multiply
    2,289.21x = 3,428.48 × 1,671.38
  4. Step 4: Simplify right side
    2,289.21x = 5,730,302.68
  5. Step 5: Solve for x
    x = 5,730,302.68/2,289.21
  6. Step 6: Final answer
    x = 2,503.18

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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.