Home / 3,215.06-4,820.49-1,365.20

Finding the Fourth Proportional to 3,215.06, 4,820.49 and 1,365.20

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Solution

The fourth proportional to 3,215.06, 4,820.49 and 1,365.20 is: 2,046.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.06 : 4,820.49 = 1,365.20 : x
  2. Step 2: Convert to fraction form
    3,215.06/4,820.49 = 1,365.20/x
  3. Step 3: Cross multiply
    3,215.06x = 4,820.49 × 1,365.20
  4. Step 4: Simplify right side
    3,215.06x = 6,580,932.95
  5. Step 5: Solve for x
    x = 6,580,932.95/3,215.06
  6. Step 6: Final answer
    x = 2,046.91

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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.