Home / 1,825.70-2,519.09-1,079.68

Finding the Fourth Proportional to 1,825.70, 2,519.09 and 1,079.68

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Solution

The fourth proportional to 1,825.70, 2,519.09 and 1,079.68 is: 1,489.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,825.70 : 2,519.09 = 1,079.68 : x
  2. Step 2: Convert to fraction form
    1,825.70/2,519.09 = 1,079.68/x
  3. Step 3: Cross multiply
    1,825.70x = 2,519.09 × 1,079.68
  4. Step 4: Simplify right side
    1,825.70x = 2,719,811.09
  5. Step 5: Solve for x
    x = 2,719,811.09/1,825.70
  6. Step 6: Final answer
    x = 1,489.74

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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.