Home / 2,170.38-2,995.11-1,175.64

Finding the Fourth Proportional to 2,170.38, 2,995.11 and 1,175.64

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Solution

The fourth proportional to 2,170.38, 2,995.11 and 1,175.64 is: 1,622.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.38 : 2,995.11 = 1,175.64 : x
  2. Step 2: Convert to fraction form
    2,170.38/2,995.11 = 1,175.64/x
  3. Step 3: Cross multiply
    2,170.38x = 2,995.11 × 1,175.64
  4. Step 4: Simplify right side
    2,170.38x = 3,521,156.14
  5. Step 5: Solve for x
    x = 3,521,156.14/2,170.38
  6. Step 6: Final answer
    x = 1,622.37

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1.5x scale

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.