Home / 4,948.38-7,417.42-2,172.71

Finding the Fourth Proportional to 4,948.38, 7,417.42 and 2,172.71

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Solution

The fourth proportional to 4,948.38, 7,417.42 and 2,172.71 is: 3,256.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,948.38 : 7,417.42 = 2,172.71 : x
  2. Step 2: Convert to fraction form
    4,948.38/7,417.42 = 2,172.71/x
  3. Step 3: Cross multiply
    4,948.38x = 7,417.42 × 2,172.71
  4. Step 4: Simplify right side
    4,948.38x = 16,115,915.72
  5. Step 5: Solve for x
    x = 16,115,915.72/4,948.38
  6. Step 6: Final answer
    x = 3,256.81

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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.