Home / 3,763.28-5,643.90-1,571.55

Finding the Fourth Proportional to 3,763.28, 5,643.90 and 1,571.55

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Solution

The fourth proportional to 3,763.28, 5,643.90 and 1,571.55 is: 2,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,763.28 : 5,643.90 = 1,571.55 : x
  2. Step 2: Convert to fraction form
    3,763.28/5,643.90 = 1,571.55/x
  3. Step 3: Cross multiply
    3,763.28x = 5,643.90 × 1,571.55
  4. Step 4: Simplify right side
    3,763.28x = 8,869,671.05
  5. Step 5: Solve for x
    x = 8,869,671.05/3,763.28
  6. Step 6: Final answer
    x = 2,356.90

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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.