Home / 3,710.40-5,118.07-2,912.52

Finding the Fourth Proportional to 3,710.40, 5,118.07 and 2,912.52

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Solution

The fourth proportional to 3,710.40, 5,118.07 and 2,912.52 is: 4,017.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.40 : 5,118.07 = 2,912.52 : x
  2. Step 2: Convert to fraction form
    3,710.40/5,118.07 = 2,912.52/x
  3. Step 3: Cross multiply
    3,710.40x = 5,118.07 × 2,912.52
  4. Step 4: Simplify right side
    3,710.40x = 14,906,481.24
  5. Step 5: Solve for x
    x = 14,906,481.24/3,710.40
  6. Step 6: Final answer
    x = 4,017.49

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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.