Home / 3,742.16-5,612.60-1,109.61

Finding the Fourth Proportional to 3,742.16, 5,612.60 and 1,109.61

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Solution

The fourth proportional to 3,742.16, 5,612.60 and 1,109.61 is: 1,664.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.16 : 5,612.60 = 1,109.61 : x
  2. Step 2: Convert to fraction form
    3,742.16/5,612.60 = 1,109.61/x
  3. Step 3: Cross multiply
    3,742.16x = 5,612.60 × 1,109.61
  4. Step 4: Simplify right side
    3,742.16x = 6,227,769.02
  5. Step 5: Solve for x
    x = 6,227,769.02/3,742.16
  6. Step 6: Final answer
    x = 1,664.22

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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.