Home / 2,117.44-2,921.92-1,173.28

Finding the Fourth Proportional to 2,117.44, 2,921.92 and 1,173.28

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Solution

The fourth proportional to 2,117.44, 2,921.92 and 1,173.28 is: 1,619.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.44 : 2,921.92 = 1,173.28 : x
  2. Step 2: Convert to fraction form
    2,117.44/2,921.92 = 1,173.28/x
  3. Step 3: Cross multiply
    2,117.44x = 2,921.92 × 1,173.28
  4. Step 4: Simplify right side
    2,117.44x = 3,428,230.30
  5. Step 5: Solve for x
    x = 3,428,230.30/2,117.44
  6. Step 6: Final answer
    x = 1,619.04

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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.