Home / 4,887.30-7,318.80-3,915.30

Finding the Fourth Proportional to 4,887.30, 7,318.80 and 3,915.30

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Solution

The fourth proportional to 4,887.30, 7,318.80 and 3,915.30 is: 5,863.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.30 : 7,318.80 = 3,915.30 : x
  2. Step 2: Convert to fraction form
    4,887.30/7,318.80 = 3,915.30/x
  3. Step 3: Cross multiply
    4,887.30x = 7,318.80 × 3,915.30
  4. Step 4: Simplify right side
    4,887.30x = 28,655,297.64
  5. Step 5: Solve for x
    x = 28,655,297.64/4,887.30
  6. Step 6: Final answer
    x = 5,863.22

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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.