Home / 1,645.11-2,464.02-1,611.90

Finding the Fourth Proportional to 1,645.11, 2,464.02 and 1,611.90

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Solution

The fourth proportional to 1,645.11, 2,464.02 and 1,611.90 is: 2,414.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.11 : 2,464.02 = 1,611.90 : x
  2. Step 2: Convert to fraction form
    1,645.11/2,464.02 = 1,611.90/x
  3. Step 3: Cross multiply
    1,645.11x = 2,464.02 × 1,611.90
  4. Step 4: Simplify right side
    1,645.11x = 3,971,753.84
  5. Step 5: Solve for x
    x = 3,971,753.84/1,645.11
  6. Step 6: Final answer
    x = 2,414.28

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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.