Home / 1,865.94-2,575.44-1,080.42

Finding the Fourth Proportional to 1,865.94, 2,575.44 and 1,080.42

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Solution

The fourth proportional to 1,865.94, 2,575.44 and 1,080.42 is: 1,491.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.94 : 2,575.44 = 1,080.42 : x
  2. Step 2: Convert to fraction form
    1,865.94/2,575.44 = 1,080.42/x
  3. Step 3: Cross multiply
    1,865.94x = 2,575.44 × 1,080.42
  4. Step 4: Simplify right side
    1,865.94x = 2,782,556.88
  5. Step 5: Solve for x
    x = 2,782,556.88/1,865.94
  6. Step 6: Final answer
    x = 1,491.24

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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.