Home / 2,117.15-3,173.90-1,022.28

Finding the Fourth Proportional to 2,117.15, 3,173.90 and 1,022.28

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Solution

The fourth proportional to 2,117.15, 3,173.90 and 1,022.28 is: 1,532.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.15 : 3,173.90 = 1,022.28 : x
  2. Step 2: Convert to fraction form
    2,117.15/3,173.90 = 1,022.28/x
  3. Step 3: Cross multiply
    2,117.15x = 3,173.90 × 1,022.28
  4. Step 4: Simplify right side
    2,117.15x = 3,244,614.49
  5. Step 5: Solve for x
    x = 3,244,614.49/2,117.15
  6. Step 6: Final answer
    x = 1,532.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.