Home / 5,915.78-8,163.38-3,263.20

Finding the Fourth Proportional to 5,915.78, 8,163.38 and 3,263.20

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Solution

The fourth proportional to 5,915.78, 8,163.38 and 3,263.20 is: 4,503.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.78 : 8,163.38 = 3,263.20 : x
  2. Step 2: Convert to fraction form
    5,915.78/8,163.38 = 3,263.20/x
  3. Step 3: Cross multiply
    5,915.78x = 8,163.38 × 3,263.20
  4. Step 4: Simplify right side
    5,915.78x = 26,638,741.62
  5. Step 5: Solve for x
    x = 26,638,741.62/5,915.78
  6. Step 6: Final answer
    x = 4,503.00

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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.