Home / 3,220.70-4,822.86-2,699.32

Finding the Fourth Proportional to 3,220.70, 4,822.86 and 2,699.32

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Solution

The fourth proportional to 3,220.70, 4,822.86 and 2,699.32 is: 4,042.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.70 : 4,822.86 = 2,699.32 : x
  2. Step 2: Convert to fraction form
    3,220.70/4,822.86 = 2,699.32/x
  3. Step 3: Cross multiply
    3,220.70x = 4,822.86 × 2,699.32
  4. Step 4: Simplify right side
    3,220.70x = 13,018,442.46
  5. Step 5: Solve for x
    x = 13,018,442.46/3,220.70
  6. Step 6: Final answer
    x = 4,042.12

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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.