Home / 6,915.10-10,369.14-3,405.38

Finding the Fourth Proportional to 6,915.10, 10,369.14 and 3,405.38

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Solution

The fourth proportional to 6,915.10, 10,369.14 and 3,405.38 is: 5,106.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.10 : 10,369.14 = 3,405.38 : x
  2. Step 2: Convert to fraction form
    6,915.10/10,369.14 = 3,405.38/x
  3. Step 3: Cross multiply
    6,915.10x = 10,369.14 × 3,405.38
  4. Step 4: Simplify right side
    6,915.10x = 35,310,861.97
  5. Step 5: Solve for x
    x = 35,310,861.97/6,915.10
  6. Step 6: Final answer
    x = 5,106.34

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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.