Home / 3,615.82-4,991.98-2,290.66

Finding the Fourth Proportional to 3,615.82, 4,991.98 and 2,290.66

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Solution

The fourth proportional to 3,615.82, 4,991.98 and 2,290.66 is: 3,162.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.82 : 4,991.98 = 2,290.66 : x
  2. Step 2: Convert to fraction form
    3,615.82/4,991.98 = 2,290.66/x
  3. Step 3: Cross multiply
    3,615.82x = 4,991.98 × 2,290.66
  4. Step 4: Simplify right side
    3,615.82x = 11,434,928.91
  5. Step 5: Solve for x
    x = 11,434,928.91/3,615.82
  6. Step 6: Final answer
    x = 3,162.47

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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.