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Finding the Fourth Proportional to 7,751.64, 11,627.16 and 3,307.48

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Solution

The fourth proportional to 7,751.64, 11,627.16 and 3,307.48 is: 4,961.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.64 : 11,627.16 = 3,307.48 : x
  2. Step 2: Convert to fraction form
    7,751.64/11,627.16 = 3,307.48/x
  3. Step 3: Cross multiply
    7,751.64x = 11,627.16 × 3,307.48
  4. Step 4: Simplify right side
    7,751.64x = 38,456,599.16
  5. Step 5: Solve for x
    x = 38,456,599.16/7,751.64
  6. Step 6: Final answer
    x = 4,961.09

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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.