Home / 3,330.45-4,998.75-1,688.15

Finding the Fourth Proportional to 3,330.45, 4,998.75 and 1,688.15

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Solution

The fourth proportional to 3,330.45, 4,998.75 and 1,688.15 is: 2,533.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.45 : 4,998.75 = 1,688.15 : x
  2. Step 2: Convert to fraction form
    3,330.45/4,998.75 = 1,688.15/x
  3. Step 3: Cross multiply
    3,330.45x = 4,998.75 × 1,688.15
  4. Step 4: Simplify right side
    3,330.45x = 8,438,614.82
  5. Step 5: Solve for x
    x = 8,438,614.82/3,330.45
  6. Step 6: Final answer
    x = 2,533.78

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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.