Home / 2,811.20-3,851.28-2,706.03

Finding the Fourth Proportional to 2,811.20, 3,851.28 and 2,706.03

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Solution

The fourth proportional to 2,811.20, 3,851.28 and 2,706.03 is: 3,707.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.20 : 3,851.28 = 2,706.03 : x
  2. Step 2: Convert to fraction form
    2,811.20/3,851.28 = 2,706.03/x
  3. Step 3: Cross multiply
    2,811.20x = 3,851.28 × 2,706.03
  4. Step 4: Simplify right side
    2,811.20x = 10,421,679.22
  5. Step 5: Solve for x
    x = 10,421,679.22/2,811.20
  6. Step 6: Final answer
    x = 3,707.21

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.