Home / 1,866.27-2,575.44-1,080.30

Finding the Fourth Proportional to 1,866.27, 2,575.44 and 1,080.30

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Solution

The fourth proportional to 1,866.27, 2,575.44 and 1,080.30 is: 1,490.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866.27 : 2,575.44 = 1,080.30 : x
  2. Step 2: Convert to fraction form
    1,866.27/2,575.44 = 1,080.30/x
  3. Step 3: Cross multiply
    1,866.27x = 2,575.44 × 1,080.30
  4. Step 4: Simplify right side
    1,866.27x = 2,782,247.83
  5. Step 5: Solve for x
    x = 2,782,247.83/1,866.27
  6. Step 6: Final answer
    x = 1,490.81

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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.