Home / 6,915.08-10,360.20-3,791.72

Finding the Fourth Proportional to 6,915.08, 10,360.20 and 3,791.72

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Solution

The fourth proportional to 6,915.08, 10,360.20 and 3,791.72 is: 5,680.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.08 : 10,360.20 = 3,791.72 : x
  2. Step 2: Convert to fraction form
    6,915.08/10,360.20 = 3,791.72/x
  3. Step 3: Cross multiply
    6,915.08x = 10,360.20 × 3,791.72
  4. Step 4: Simplify right side
    6,915.08x = 39,282,977.54
  5. Step 5: Solve for x
    x = 39,282,977.54/6,915.08
  6. Step 6: Final answer
    x = 5,680.77

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1.5x scale

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.