Home / 2,881.65-3,976.53-1,622.91

Finding the Fourth Proportional to 2,881.65, 3,976.53 and 1,622.91

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Solution

The fourth proportional to 2,881.65, 3,976.53 and 1,622.91 is: 2,239.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.65 : 3,976.53 = 1,622.91 : x
  2. Step 2: Convert to fraction form
    2,881.65/3,976.53 = 1,622.91/x
  3. Step 3: Cross multiply
    2,881.65x = 3,976.53 × 1,622.91
  4. Step 4: Simplify right side
    2,881.65x = 6,453,550.30
  5. Step 5: Solve for x
    x = 6,453,550.30/2,881.65
  6. Step 6: Final answer
    x = 2,239.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.