Home / 2,009.28-2,771.22-1,223.17

Finding the Fourth Proportional to 2,009.28, 2,771.22 and 1,223.17

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Solution

The fourth proportional to 2,009.28, 2,771.22 and 1,223.17 is: 1,687.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,009.28 : 2,771.22 = 1,223.17 : x
  2. Step 2: Convert to fraction form
    2,009.28/2,771.22 = 1,223.17/x
  3. Step 3: Cross multiply
    2,009.28x = 2,771.22 × 1,223.17
  4. Step 4: Simplify right side
    2,009.28x = 3,389,673.17
  5. Step 5: Solve for x
    x = 3,389,673.17/2,009.28
  6. Step 6: Final answer
    x = 1,687.01

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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.