Home / 1,665.27-2,496.21-1,080.64

Finding the Fourth Proportional to 1,665.27, 2,496.21 and 1,080.64

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Solution

The fourth proportional to 1,665.27, 2,496.21 and 1,080.64 is: 1,619.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665.27 : 2,496.21 = 1,080.64 : x
  2. Step 2: Convert to fraction form
    1,665.27/2,496.21 = 1,080.64/x
  3. Step 3: Cross multiply
    1,665.27x = 2,496.21 × 1,080.64
  4. Step 4: Simplify right side
    1,665.27x = 2,697,486.49
  5. Step 5: Solve for x
    x = 2,697,486.49/1,665.27
  6. Step 6: Final answer
    x = 1,619.85

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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.