Home / 3,180.87-4,389.93-1,836.81

Finding the Fourth Proportional to 3,180.87, 4,389.93 and 1,836.81

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Solution

The fourth proportional to 3,180.87, 4,389.93 and 1,836.81 is: 2,534.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.87 : 4,389.93 = 1,836.81 : x
  2. Step 2: Convert to fraction form
    3,180.87/4,389.93 = 1,836.81/x
  3. Step 3: Cross multiply
    3,180.87x = 4,389.93 × 1,836.81
  4. Step 4: Simplify right side
    3,180.87x = 8,063,467.32
  5. Step 5: Solve for x
    x = 8,063,467.32/3,180.87
  6. Step 6: Final answer
    x = 2,534.99

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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.