Home / 2,114.67-2,918.10-1,170.21

Finding the Fourth Proportional to 2,114.67, 2,918.10 and 1,170.21

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Solution

The fourth proportional to 2,114.67, 2,918.10 and 1,170.21 is: 1,614.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.67 : 2,918.10 = 1,170.21 : x
  2. Step 2: Convert to fraction form
    2,114.67/2,918.10 = 1,170.21/x
  3. Step 3: Cross multiply
    2,114.67x = 2,918.10 × 1,170.21
  4. Step 4: Simplify right side
    2,114.67x = 3,414,789.80
  5. Step 5: Solve for x
    x = 3,414,789.80/2,114.67
  6. Step 6: Final answer
    x = 1,614.81

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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.