Home / 1,997.13-2,756.45-1,324.97

Finding the Fourth Proportional to 1,997.13, 2,756.45 and 1,324.97

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Solution

The fourth proportional to 1,997.13, 2,756.45 and 1,324.97 is: 1,828.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997.13 : 2,756.45 = 1,324.97 : x
  2. Step 2: Convert to fraction form
    1,997.13/2,756.45 = 1,324.97/x
  3. Step 3: Cross multiply
    1,997.13x = 2,756.45 × 1,324.97
  4. Step 4: Simplify right side
    1,997.13x = 3,652,225.20
  5. Step 5: Solve for x
    x = 3,652,225.20/1,997.13
  6. Step 6: Final answer
    x = 1,828.74

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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.