Home / 3,688.87-5,529.95-1,840.55

Finding the Fourth Proportional to 3,688.87, 5,529.95 and 1,840.55

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Solution

The fourth proportional to 3,688.87, 5,529.95 and 1,840.55 is: 2,759.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.87 : 5,529.95 = 1,840.55 : x
  2. Step 2: Convert to fraction form
    3,688.87/5,529.95 = 1,840.55/x
  3. Step 3: Cross multiply
    3,688.87x = 5,529.95 × 1,840.55
  4. Step 4: Simplify right side
    3,688.87x = 10,178,112.62
  5. Step 5: Solve for x
    x = 10,178,112.62/3,688.87
  6. Step 6: Final answer
    x = 2,759.14

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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.