Home / 3,621.16-5,429.90-1,769.50

Finding the Fourth Proportional to 3,621.16, 5,429.90 and 1,769.50

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Solution

The fourth proportional to 3,621.16, 5,429.90 and 1,769.50 is: 2,653.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.16 : 5,429.90 = 1,769.50 : x
  2. Step 2: Convert to fraction form
    3,621.16/5,429.90 = 1,769.50/x
  3. Step 3: Cross multiply
    3,621.16x = 5,429.90 × 1,769.50
  4. Step 4: Simplify right side
    3,621.16x = 9,608,208.05
  5. Step 5: Solve for x
    x = 9,608,208.05/3,621.16
  6. Step 6: Final answer
    x = 2,653.35

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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.