Home / 6,864.76-9,472.34-3,880.57

Finding the Fourth Proportional to 6,864.76, 9,472.34 and 3,880.57

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Solution

The fourth proportional to 6,864.76, 9,472.34 and 3,880.57 is: 5,354.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.76 : 9,472.34 = 3,880.57 : x
  2. Step 2: Convert to fraction form
    6,864.76/9,472.34 = 3,880.57/x
  3. Step 3: Cross multiply
    6,864.76x = 9,472.34 × 3,880.57
  4. Step 4: Simplify right side
    6,864.76x = 36,758,078.43
  5. Step 5: Solve for x
    x = 36,758,078.43/6,864.76
  6. Step 6: Final answer
    x = 5,354.61

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1.5x scale

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.