Home / 1,866.21-2,575.35-1,080.24

Finding the Fourth Proportional to 1,866.21, 2,575.35 and 1,080.24

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Solution

The fourth proportional to 1,866.21, 2,575.35 and 1,080.24 is: 1,490.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866.21 : 2,575.35 = 1,080.24 : x
  2. Step 2: Convert to fraction form
    1,866.21/2,575.35 = 1,080.24/x
  3. Step 3: Cross multiply
    1,866.21x = 2,575.35 × 1,080.24
  4. Step 4: Simplify right side
    1,866.21x = 2,781,996.08
  5. Step 5: Solve for x
    x = 2,781,996.08/1,866.21
  6. Step 6: Final answer
    x = 1,490.72

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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.