Home / 1,726.36-2,590.46-1,318.12

Finding the Fourth Proportional to 1,726.36, 2,590.46 and 1,318.12

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Solution

The fourth proportional to 1,726.36, 2,590.46 and 1,318.12 is: 1,977.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,726.36 : 2,590.46 = 1,318.12 : x
  2. Step 2: Convert to fraction form
    1,726.36/2,590.46 = 1,318.12/x
  3. Step 3: Cross multiply
    1,726.36x = 2,590.46 × 1,318.12
  4. Step 4: Simplify right side
    1,726.36x = 3,414,537.14
  5. Step 5: Solve for x
    x = 3,414,537.14/1,726.36
  6. Step 6: Final answer
    x = 1,977.88

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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.