Home / 1,866.24-2,575.56-1,080.30

Finding the Fourth Proportional to 1,866.24, 2,575.56 and 1,080.30

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Solution

The fourth proportional to 1,866.24, 2,575.56 and 1,080.30 is: 1,490.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866.24 : 2,575.56 = 1,080.30 : x
  2. Step 2: Convert to fraction form
    1,866.24/2,575.56 = 1,080.30/x
  3. Step 3: Cross multiply
    1,866.24x = 2,575.56 × 1,080.30
  4. Step 4: Simplify right side
    1,866.24x = 2,782,377.47
  5. Step 5: Solve for x
    x = 2,782,377.47/1,866.24
  6. Step 6: Final answer
    x = 1,490.90

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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.