Home / 3,669.16-5,505.36-1,721.20

Finding the Fourth Proportional to 3,669.16, 5,505.36 and 1,721.20

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Solution

The fourth proportional to 3,669.16, 5,505.36 and 1,721.20 is: 2,582.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.16 : 5,505.36 = 1,721.20 : x
  2. Step 2: Convert to fraction form
    3,669.16/5,505.36 = 1,721.20/x
  3. Step 3: Cross multiply
    3,669.16x = 5,505.36 × 1,721.20
  4. Step 4: Simplify right side
    3,669.16x = 9,475,825.63
  5. Step 5: Solve for x
    x = 9,475,825.63/3,669.16
  6. Step 6: Final answer
    x = 2,582.56

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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.