Home / 2,228.50-3,076.14-1,531.90

Finding the Fourth Proportional to 2,228.50, 3,076.14 and 1,531.90

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Solution

The fourth proportional to 2,228.50, 3,076.14 and 1,531.90 is: 2,114.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.50 : 3,076.14 = 1,531.90 : x
  2. Step 2: Convert to fraction form
    2,228.50/3,076.14 = 1,531.90/x
  3. Step 3: Cross multiply
    2,228.50x = 3,076.14 × 1,531.90
  4. Step 4: Simplify right side
    2,228.50x = 4,712,338.87
  5. Step 5: Solve for x
    x = 4,712,338.87/2,228.50
  6. Step 6: Final answer
    x = 2,114.58

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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.