Home / 1,866.30-2,575.74-1,080.18

Finding the Fourth Proportional to 1,866.30, 2,575.74 and 1,080.18

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Solution

The fourth proportional to 1,866.30, 2,575.74 and 1,080.18 is: 1,490.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866.30 : 2,575.74 = 1,080.18 : x
  2. Step 2: Convert to fraction form
    1,866.30/2,575.74 = 1,080.18/x
  3. Step 3: Cross multiply
    1,866.30x = 2,575.74 × 1,080.18
  4. Step 4: Simplify right side
    1,866.30x = 2,782,262.83
  5. Step 5: Solve for x
    x = 2,782,262.83/1,866.30
  6. Step 6: Final answer
    x = 1,490.79

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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.