Home / 1,518.10-2,277.15-1,171.94

Finding the Fourth Proportional to 1,518.10, 2,277.15 and 1,171.94

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Solution

The fourth proportional to 1,518.10, 2,277.15 and 1,171.94 is: 1,757.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.10 : 2,277.15 = 1,171.94 : x
  2. Step 2: Convert to fraction form
    1,518.10/2,277.15 = 1,171.94/x
  3. Step 3: Cross multiply
    1,518.10x = 2,277.15 × 1,171.94
  4. Step 4: Simplify right side
    1,518.10x = 2,668,691.12
  5. Step 5: Solve for x
    x = 2,668,691.12/1,518.10
  6. Step 6: Final answer
    x = 1,757.91

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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.