Home / 1,815.24-2,504.90-1,116.62

Finding the Fourth Proportional to 1,815.24, 2,504.90 and 1,116.62

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Solution

The fourth proportional to 1,815.24, 2,504.90 and 1,116.62 is: 1,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.24 : 2,504.90 = 1,116.62 : x
  2. Step 2: Convert to fraction form
    1,815.24/2,504.90 = 1,116.62/x
  3. Step 3: Cross multiply
    1,815.24x = 2,504.90 × 1,116.62
  4. Step 4: Simplify right side
    1,815.24x = 2,797,021.44
  5. Step 5: Solve for x
    x = 2,797,021.44/1,815.24
  6. Step 6: Final answer
    x = 1,540.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.