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Finding the Fourth Proportional to 3,841.66, 5,288.66 and 3,665.33

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Solution

The fourth proportional to 3,841.66, 5,288.66 and 3,665.33 is: 5,045.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,841.66 : 5,288.66 = 3,665.33 : x
  2. Step 2: Convert to fraction form
    3,841.66/5,288.66 = 3,665.33/x
  3. Step 3: Cross multiply
    3,841.66x = 5,288.66 × 3,665.33
  4. Step 4: Simplify right side
    3,841.66x = 19,384,657.71
  5. Step 5: Solve for x
    x = 19,384,657.71/3,841.66
  6. Step 6: Final answer
    x = 5,045.91

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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.