Home / 2,407.11-3,611.88-1,109.49

Finding the Fourth Proportional to 2,407.11, 3,611.88 and 1,109.49

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Solution

The fourth proportional to 2,407.11, 3,611.88 and 1,109.49 is: 1,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,407.11 : 3,611.88 = 1,109.49 : x
  2. Step 2: Convert to fraction form
    2,407.11/3,611.88 = 1,109.49/x
  3. Step 3: Cross multiply
    2,407.11x = 3,611.88 × 1,109.49
  4. Step 4: Simplify right side
    2,407.11x = 4,007,344.74
  5. Step 5: Solve for x
    x = 4,007,344.74/2,407.11
  6. Step 6: Final answer
    x = 1,664.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.