Home / 3,418.48-4,718.10-2,021.32

Finding the Fourth Proportional to 3,418.48, 4,718.10 and 2,021.32

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Solution

The fourth proportional to 3,418.48, 4,718.10 and 2,021.32 is: 2,789.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.48 : 4,718.10 = 2,021.32 : x
  2. Step 2: Convert to fraction form
    3,418.48/4,718.10 = 2,021.32/x
  3. Step 3: Cross multiply
    3,418.48x = 4,718.10 × 2,021.32
  4. Step 4: Simplify right side
    3,418.48x = 9,536,789.89
  5. Step 5: Solve for x
    x = 9,536,789.89/3,418.48
  6. Step 6: Final answer
    x = 2,789.77

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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.