Home / 2,750.76-4,128.57-1,453.14

Finding the Fourth Proportional to 2,750.76, 4,128.57 and 1,453.14

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Solution

The fourth proportional to 2,750.76, 4,128.57 and 1,453.14 is: 2,180.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.76 : 4,128.57 = 1,453.14 : x
  2. Step 2: Convert to fraction form
    2,750.76/4,128.57 = 1,453.14/x
  3. Step 3: Cross multiply
    2,750.76x = 4,128.57 × 1,453.14
  4. Step 4: Simplify right side
    2,750.76x = 5,999,390.21
  5. Step 5: Solve for x
    x = 5,999,390.21/2,750.76
  6. Step 6: Final answer
    x = 2,180.99

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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.