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Finding the Fourth Proportional to 5,179.66, 7,145.66 and 3,500.46

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Solution

The fourth proportional to 5,179.66, 7,145.66 and 3,500.46 is: 4,829.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.66 : 7,145.66 = 3,500.46 : x
  2. Step 2: Convert to fraction form
    5,179.66/7,145.66 = 3,500.46/x
  3. Step 3: Cross multiply
    5,179.66x = 7,145.66 × 3,500.46
  4. Step 4: Simplify right side
    5,179.66x = 25,013,043.77
  5. Step 5: Solve for x
    x = 25,013,043.77/5,179.66
  6. Step 6: Final answer
    x = 4,829.09

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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.