Home / 1,469.51-2,204.78-921.04

Finding the Fourth Proportional to 1,469.51, 2,204.78 and 921.04

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Solution

The fourth proportional to 1,469.51, 2,204.78 and 921.04 is: 1,381.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.51 : 2,204.78 = 921.04 : x
  2. Step 2: Convert to fraction form
    1,469.51/2,204.78 = 921.04/x
  3. Step 3: Cross multiply
    1,469.51x = 2,204.78 × 921.04
  4. Step 4: Simplify right side
    1,469.51x = 2,030,690.57
  5. Step 5: Solve for x
    x = 2,030,690.57/1,469.51
  6. Step 6: Final answer
    x = 1,381.88

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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.