Home / 2,167.26-2,989.74-1,371.60

Finding the Fourth Proportional to 2,167.26, 2,989.74 and 1,371.60

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Solution

The fourth proportional to 2,167.26, 2,989.74 and 1,371.60 is: 1,892.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.26 : 2,989.74 = 1,371.60 : x
  2. Step 2: Convert to fraction form
    2,167.26/2,989.74 = 1,371.60/x
  3. Step 3: Cross multiply
    2,167.26x = 2,989.74 × 1,371.60
  4. Step 4: Simplify right side
    2,167.26x = 4,100,727.38
  5. Step 5: Solve for x
    x = 4,100,727.38/2,167.26
  6. Step 6: Final answer
    x = 1,892.13

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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.