Home / 3,569.28-5,356.26-1,621.68

Finding the Fourth Proportional to 3,569.28, 5,356.26 and 1,621.68

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Solution

The fourth proportional to 3,569.28, 5,356.26 and 1,621.68 is: 2,433.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,569.28 : 5,356.26 = 1,621.68 : x
  2. Step 2: Convert to fraction form
    3,569.28/5,356.26 = 1,621.68/x
  3. Step 3: Cross multiply
    3,569.28x = 5,356.26 × 1,621.68
  4. Step 4: Simplify right side
    3,569.28x = 8,686,139.72
  5. Step 5: Solve for x
    x = 8,686,139.72/3,569.28
  6. Step 6: Final answer
    x = 2,433.58

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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.