Home / 1,538.14-2,305.68-1,329.08

Finding the Fourth Proportional to 1,538.14, 2,305.68 and 1,329.08

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Solution

The fourth proportional to 1,538.14, 2,305.68 and 1,329.08 is: 1,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538.14 : 2,305.68 = 1,329.08 : x
  2. Step 2: Convert to fraction form
    1,538.14/2,305.68 = 1,329.08/x
  3. Step 3: Cross multiply
    1,538.14x = 2,305.68 × 1,329.08
  4. Step 4: Simplify right side
    1,538.14x = 3,064,433.17
  5. Step 5: Solve for x
    x = 3,064,433.17/1,538.14
  6. Step 6: Final answer
    x = 1,992.30

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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.