Home / 2,167.36-2,990.17-1,270.33

Finding the Fourth Proportional to 2,167.36, 2,990.17 and 1,270.33

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Solution

The fourth proportional to 2,167.36, 2,990.17 and 1,270.33 is: 1,752.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.36 : 2,990.17 = 1,270.33 : x
  2. Step 2: Convert to fraction form
    2,167.36/2,990.17 = 1,270.33/x
  3. Step 3: Cross multiply
    2,167.36x = 2,990.17 × 1,270.33
  4. Step 4: Simplify right side
    2,167.36x = 3,798,506.44
  5. Step 5: Solve for x
    x = 3,798,506.44/2,167.36
  6. Step 6: Final answer
    x = 1,752.60

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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.