Home / 5,229.45-7,845.30-1,531.40

Finding the Fourth Proportional to 5,229.45, 7,845.30 and 1,531.40

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Solution

The fourth proportional to 5,229.45, 7,845.30 and 1,531.40 is: 2,297.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.45 : 7,845.30 = 1,531.40 : x
  2. Step 2: Convert to fraction form
    5,229.45/7,845.30 = 1,531.40/x
  3. Step 3: Cross multiply
    5,229.45x = 7,845.30 × 1,531.40
  4. Step 4: Simplify right side
    5,229.45x = 12,014,253.19
  5. Step 5: Solve for x
    x = 12,014,253.19/5,229.45
  6. Step 6: Final answer
    x = 2,297.42

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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.