Home / 2,108.48-2,908.46-1,321.16

Finding the Fourth Proportional to 2,108.48, 2,908.46 and 1,321.16

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Solution

The fourth proportional to 2,108.48, 2,908.46 and 1,321.16 is: 1,822.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.48 : 2,908.46 = 1,321.16 : x
  2. Step 2: Convert to fraction form
    2,108.48/2,908.46 = 1,321.16/x
  3. Step 3: Cross multiply
    2,108.48x = 2,908.46 × 1,321.16
  4. Step 4: Simplify right side
    2,108.48x = 3,842,529.77
  5. Step 5: Solve for x
    x = 3,842,529.77/2,108.48
  6. Step 6: Final answer
    x = 1,822.42

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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.