Home / 3,380.86-4,665.58-1,889.07

Finding the Fourth Proportional to 3,380.86, 4,665.58 and 1,889.07

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Solution

The fourth proportional to 3,380.86, 4,665.58 and 1,889.07 is: 2,606.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.86 : 4,665.58 = 1,889.07 : x
  2. Step 2: Convert to fraction form
    3,380.86/4,665.58 = 1,889.07/x
  3. Step 3: Cross multiply
    3,380.86x = 4,665.58 × 1,889.07
  4. Step 4: Simplify right side
    3,380.86x = 8,813,607.21
  5. Step 5: Solve for x
    x = 8,813,607.21/3,380.86
  6. Step 6: Final answer
    x = 2,606.91

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1.5x scale

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.