Home / 3,317.50-4,976.45-1,009

Finding the Fourth Proportional to 3,317.50, 4,976.45 and 1,009

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Solution

The fourth proportional to 3,317.50, 4,976.45 and 1,009 is: 1,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.50 : 4,976.45 = 1,009 : x
  2. Step 2: Convert to fraction form
    3,317.50/4,976.45 = 1,009/x
  3. Step 3: Cross multiply
    3,317.50x = 4,976.45 × 1,009
  4. Step 4: Simplify right side
    3,317.50x = 5,021,238.05
  5. Step 5: Solve for x
    x = 5,021,238.05/3,317.50
  6. Step 6: Final answer
    x = 1,513.56

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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.