Home / 3,110.79-4,287.15-2,637.18

Finding the Fourth Proportional to 3,110.79, 4,287.15 and 2,637.18

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Solution

The fourth proportional to 3,110.79, 4,287.15 and 2,637.18 is: 3,634.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.79 : 4,287.15 = 2,637.18 : x
  2. Step 2: Convert to fraction form
    3,110.79/4,287.15 = 2,637.18/x
  3. Step 3: Cross multiply
    3,110.79x = 4,287.15 × 2,637.18
  4. Step 4: Simplify right side
    3,110.79x = 11,305,986.24
  5. Step 5: Solve for x
    x = 11,305,986.24/3,110.79
  6. Step 6: Final answer
    x = 3,634.44

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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.