Home / 3,616.19-5,420.49-1,764.76

Finding the Fourth Proportional to 3,616.19, 5,420.49 and 1,764.76

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Solution

The fourth proportional to 3,616.19, 5,420.49 and 1,764.76 is: 2,645.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.19 : 5,420.49 = 1,764.76 : x
  2. Step 2: Convert to fraction form
    3,616.19/5,420.49 = 1,764.76/x
  3. Step 3: Cross multiply
    3,616.19x = 5,420.49 × 1,764.76
  4. Step 4: Simplify right side
    3,616.19x = 9,565,828.01
  5. Step 5: Solve for x
    x = 9,565,828.01/3,616.19
  6. Step 6: Final answer
    x = 2,645.28

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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.