Home / 3,742.08-5,160-2,691.84

Finding the Fourth Proportional to 3,742.08, 5,160 and 2,691.84

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Solution

The fourth proportional to 3,742.08, 5,160 and 2,691.84 is: 3,711.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.08 : 5,160 = 2,691.84 : x
  2. Step 2: Convert to fraction form
    3,742.08/5,160 = 2,691.84/x
  3. Step 3: Cross multiply
    3,742.08x = 5,160 × 2,691.84
  4. Step 4: Simplify right side
    3,742.08x = 13,889,894.40
  5. Step 5: Solve for x
    x = 13,889,894.40/3,742.08
  6. Step 6: Final answer
    x = 3,711.81

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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.