Home / 3,742.85-5,164.53-2,170.64

Finding the Fourth Proportional to 3,742.85, 5,164.53 and 2,170.64

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Solution

The fourth proportional to 3,742.85, 5,164.53 and 2,170.64 is: 2,995.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.85 : 5,164.53 = 2,170.64 : x
  2. Step 2: Convert to fraction form
    3,742.85/5,164.53 = 2,170.64/x
  3. Step 3: Cross multiply
    3,742.85x = 5,164.53 × 2,170.64
  4. Step 4: Simplify right side
    3,742.85x = 11,210,335.40
  5. Step 5: Solve for x
    x = 11,210,335.40/3,742.85
  6. Step 6: Final answer
    x = 2,995.13

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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.