Home / 3,657.75-5,045.32-2,164.62

Finding the Fourth Proportional to 3,657.75, 5,045.32 and 2,164.62

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Solution

The fourth proportional to 3,657.75, 5,045.32 and 2,164.62 is: 2,985.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.75 : 5,045.32 = 2,164.62 : x
  2. Step 2: Convert to fraction form
    3,657.75/5,045.32 = 2,164.62/x
  3. Step 3: Cross multiply
    3,657.75x = 5,045.32 × 2,164.62
  4. Step 4: Simplify right side
    3,657.75x = 10,921,200.58
  5. Step 5: Solve for x
    x = 10,921,200.58/3,657.75
  6. Step 6: Final answer
    x = 2,985.77

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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.