Home / 3,657.63-5,487.45-1,192.39

Finding the Fourth Proportional to 3,657.63, 5,487.45 and 1,192.39

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Solution

The fourth proportional to 3,657.63, 5,487.45 and 1,192.39 is: 1,788.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.63 : 5,487.45 = 1,192.39 : x
  2. Step 2: Convert to fraction form
    3,657.63/5,487.45 = 1,192.39/x
  3. Step 3: Cross multiply
    3,657.63x = 5,487.45 × 1,192.39
  4. Step 4: Simplify right side
    3,657.63x = 6,543,180.51
  5. Step 5: Solve for x
    x = 6,543,180.51/3,657.63
  6. Step 6: Final answer
    x = 1,788.91

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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.