Home / 3,376.12-5,063.76-1,428.07

Finding the Fourth Proportional to 3,376.12, 5,063.76 and 1,428.07

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Solution

The fourth proportional to 3,376.12, 5,063.76 and 1,428.07 is: 2,141.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,376.12 : 5,063.76 = 1,428.07 : x
  2. Step 2: Convert to fraction form
    3,376.12/5,063.76 = 1,428.07/x
  3. Step 3: Cross multiply
    3,376.12x = 5,063.76 × 1,428.07
  4. Step 4: Simplify right side
    3,376.12x = 7,231,403.74
  5. Step 5: Solve for x
    x = 7,231,403.74/3,376.12
  6. Step 6: Final answer
    x = 2,141.93

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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.