Home / 2,167.15-2,989.72-1,270.44

Finding the Fourth Proportional to 2,167.15, 2,989.72 and 1,270.44

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Solution

The fourth proportional to 2,167.15, 2,989.72 and 1,270.44 is: 1,752.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.15 : 2,989.72 = 1,270.44 : x
  2. Step 2: Convert to fraction form
    2,167.15/2,989.72 = 1,270.44/x
  3. Step 3: Cross multiply
    2,167.15x = 2,989.72 × 1,270.44
  4. Step 4: Simplify right side
    2,167.15x = 3,798,249.48
  5. Step 5: Solve for x
    x = 3,798,249.48/2,167.15
  6. Step 6: Final answer
    x = 1,752.65

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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.