Home / 2,282.02-3,418.70-1,128.58

Finding the Fourth Proportional to 2,282.02, 3,418.70 and 1,128.58

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Solution

The fourth proportional to 2,282.02, 3,418.70 and 1,128.58 is: 1,690.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,282.02 : 3,418.70 = 1,128.58 : x
  2. Step 2: Convert to fraction form
    2,282.02/3,418.70 = 1,128.58/x
  3. Step 3: Cross multiply
    2,282.02x = 3,418.70 × 1,128.58
  4. Step 4: Simplify right side
    2,282.02x = 3,858,276.45
  5. Step 5: Solve for x
    x = 3,858,276.45/2,282.02
  6. Step 6: Final answer
    x = 1,690.73

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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.