Home / 3,172.54-4,758.38-1,440.76

Finding the Fourth Proportional to 3,172.54, 4,758.38 and 1,440.76

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Solution

The fourth proportional to 3,172.54, 4,758.38 and 1,440.76 is: 2,160.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.54 : 4,758.38 = 1,440.76 : x
  2. Step 2: Convert to fraction form
    3,172.54/4,758.38 = 1,440.76/x
  3. Step 3: Cross multiply
    3,172.54x = 4,758.38 × 1,440.76
  4. Step 4: Simplify right side
    3,172.54x = 6,855,683.57
  5. Step 5: Solve for x
    x = 6,855,683.57/3,172.54
  6. Step 6: Final answer
    x = 2,160.94

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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.