Home / 2,815.65-4,220.66-1,332.23

Finding the Fourth Proportional to 2,815.65, 4,220.66 and 1,332.23

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Solution

The fourth proportional to 2,815.65, 4,220.66 and 1,332.23 is: 1,997.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.65 : 4,220.66 = 1,332.23 : x
  2. Step 2: Convert to fraction form
    2,815.65/4,220.66 = 1,332.23/x
  3. Step 3: Cross multiply
    2,815.65x = 4,220.66 × 1,332.23
  4. Step 4: Simplify right side
    2,815.65x = 5,622,887.87
  5. Step 5: Solve for x
    x = 5,622,887.87/2,815.65
  6. Step 6: Final answer
    x = 1,997.01

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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.