Home / 2,709.85-3,739.82-1,531.13

Finding the Fourth Proportional to 2,709.85, 3,739.82 and 1,531.13

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Solution

The fourth proportional to 2,709.85, 3,739.82 and 1,531.13 is: 2,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.85 : 3,739.82 = 1,531.13 : x
  2. Step 2: Convert to fraction form
    2,709.85/3,739.82 = 1,531.13/x
  3. Step 3: Cross multiply
    2,709.85x = 3,739.82 × 1,531.13
  4. Step 4: Simplify right side
    2,709.85x = 5,726,150.60
  5. Step 5: Solve for x
    x = 5,726,150.60/2,709.85
  6. Step 6: Final answer
    x = 2,113.09

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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.