Home / 1,536.35-2,305.34-921.29

Finding the Fourth Proportional to 1,536.35, 2,305.34 and 921.29

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Solution

The fourth proportional to 1,536.35, 2,305.34 and 921.29 is: 1,382.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536.35 : 2,305.34 = 921.29 : x
  2. Step 2: Convert to fraction form
    1,536.35/2,305.34 = 921.29/x
  3. Step 3: Cross multiply
    1,536.35x = 2,305.34 × 921.29
  4. Step 4: Simplify right side
    1,536.35x = 2,123,882.08
  5. Step 5: Solve for x
    x = 2,123,882.08/1,536.35
  6. Step 6: Final answer
    x = 1,382.42

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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.