Home / 1,820.44-2,730.78-1,531.48

Finding the Fourth Proportional to 1,820.44, 2,730.78 and 1,531.48

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Solution

The fourth proportional to 1,820.44, 2,730.78 and 1,531.48 is: 2,297.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.44 : 2,730.78 = 1,531.48 : x
  2. Step 2: Convert to fraction form
    1,820.44/2,730.78 = 1,531.48/x
  3. Step 3: Cross multiply
    1,820.44x = 2,730.78 × 1,531.48
  4. Step 4: Simplify right side
    1,820.44x = 4,182,134.95
  5. Step 5: Solve for x
    x = 4,182,134.95/1,820.44
  6. Step 6: Final answer
    x = 2,297.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.