Home / 3,742.58-5,611.91-1,109.72

Finding the Fourth Proportional to 3,742.58, 5,611.91 and 1,109.72

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Solution

The fourth proportional to 3,742.58, 5,611.91 and 1,109.72 is: 1,664.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.58 : 5,611.91 = 1,109.72 : x
  2. Step 2: Convert to fraction form
    3,742.58/5,611.91 = 1,109.72/x
  3. Step 3: Cross multiply
    3,742.58x = 5,611.91 × 1,109.72
  4. Step 4: Simplify right side
    3,742.58x = 6,227,652.17
  5. Step 5: Solve for x
    x = 6,227,652.17/3,742.58
  6. Step 6: Final answer
    x = 1,664.00

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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.