Home / 2,684.20-3,704.20-1,505.28

Finding the Fourth Proportional to 2,684.20, 3,704.20 and 1,505.28

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Solution

The fourth proportional to 2,684.20, 3,704.20 and 1,505.28 is: 2,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,684.20 : 3,704.20 = 1,505.28 : x
  2. Step 2: Convert to fraction form
    2,684.20/3,704.20 = 1,505.28/x
  3. Step 3: Cross multiply
    2,684.20x = 3,704.20 × 1,505.28
  4. Step 4: Simplify right side
    2,684.20x = 5,575,858.18
  5. Step 5: Solve for x
    x = 5,575,858.18/2,684.20
  6. Step 6: Final answer
    x = 2,077.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.