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Finding the Fourth Proportional to 3,951.16, 5,927.70 and 1,215.16

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Solution

The fourth proportional to 3,951.16, 5,927.70 and 1,215.16 is: 1,823.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.16 : 5,927.70 = 1,215.16 : x
  2. Step 2: Convert to fraction form
    3,951.16/5,927.70 = 1,215.16/x
  3. Step 3: Cross multiply
    3,951.16x = 5,927.70 × 1,215.16
  4. Step 4: Simplify right side
    3,951.16x = 7,203,103.93
  5. Step 5: Solve for x
    x = 7,203,103.93/3,951.16
  6. Step 6: Final answer
    x = 1,823.04

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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.