Home / 3,380.70-4,665.38-1,888.68

Finding the Fourth Proportional to 3,380.70, 4,665.38 and 1,888.68

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Solution

The fourth proportional to 3,380.70, 4,665.38 and 1,888.68 is: 2,606.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.70 : 4,665.38 = 1,888.68 : x
  2. Step 2: Convert to fraction form
    3,380.70/4,665.38 = 1,888.68/x
  3. Step 3: Cross multiply
    3,380.70x = 4,665.38 × 1,888.68
  4. Step 4: Simplify right side
    3,380.70x = 8,811,409.90
  5. Step 5: Solve for x
    x = 8,811,409.90/3,380.70
  6. Step 6: Final answer
    x = 2,606.39

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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.