Home / 3,608.31-5,412.47-1,661.88

Finding the Fourth Proportional to 3,608.31, 5,412.47 and 1,661.88

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Solution

The fourth proportional to 3,608.31, 5,412.47 and 1,661.88 is: 2,492.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.31 : 5,412.47 = 1,661.88 : x
  2. Step 2: Convert to fraction form
    3,608.31/5,412.47 = 1,661.88/x
  3. Step 3: Cross multiply
    3,608.31x = 5,412.47 × 1,661.88
  4. Step 4: Simplify right side
    3,608.31x = 8,994,875.64
  5. Step 5: Solve for x
    x = 8,994,875.64/3,608.31
  6. Step 6: Final answer
    x = 2,492.82

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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.