Home / 3,657.83-5,487.20-1,191.99

Finding the Fourth Proportional to 3,657.83, 5,487.20 and 1,191.99

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Solution

The fourth proportional to 3,657.83, 5,487.20 and 1,191.99 is: 1,788.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.83 : 5,487.20 = 1,191.99 : x
  2. Step 2: Convert to fraction form
    3,657.83/5,487.20 = 1,191.99/x
  3. Step 3: Cross multiply
    3,657.83x = 5,487.20 × 1,191.99
  4. Step 4: Simplify right side
    3,657.83x = 6,540,681.57
  5. Step 5: Solve for x
    x = 6,540,681.57/3,657.83
  6. Step 6: Final answer
    x = 1,788.13

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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.