Home / 3,330.40-4,996.32-1,381.56

Finding the Fourth Proportional to 3,330.40, 4,996.32 and 1,381.56

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Solution

The fourth proportional to 3,330.40, 4,996.32 and 1,381.56 is: 2,072.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.40 : 4,996.32 = 1,381.56 : x
  2. Step 2: Convert to fraction form
    3,330.40/4,996.32 = 1,381.56/x
  3. Step 3: Cross multiply
    3,330.40x = 4,996.32 × 1,381.56
  4. Step 4: Simplify right side
    3,330.40x = 6,902,715.86
  5. Step 5: Solve for x
    x = 6,902,715.86/3,330.40
  6. Step 6: Final answer
    x = 2,072.64

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1.5x scale

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.