Home / 1,605.38-2,217.24-1,080.50

Finding the Fourth Proportional to 1,605.38, 2,217.24 and 1,080.50

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Solution

The fourth proportional to 1,605.38, 2,217.24 and 1,080.50 is: 1,492.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605.38 : 2,217.24 = 1,080.50 : x
  2. Step 2: Convert to fraction form
    1,605.38/2,217.24 = 1,080.50/x
  3. Step 3: Cross multiply
    1,605.38x = 2,217.24 × 1,080.50
  4. Step 4: Simplify right side
    1,605.38x = 2,395,716.73
  5. Step 5: Solve for x
    x = 2,395,716.73/1,605.38
  6. Step 6: Final answer
    x = 1,492.31

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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.