Home / 3,155.94-4,355.12-1,829.57

Finding the Fourth Proportional to 3,155.94, 4,355.12 and 1,829.57

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Solution

The fourth proportional to 3,155.94, 4,355.12 and 1,829.57 is: 2,524.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.94 : 4,355.12 = 1,829.57 : x
  2. Step 2: Convert to fraction form
    3,155.94/4,355.12 = 1,829.57/x
  3. Step 3: Cross multiply
    3,155.94x = 4,355.12 × 1,829.57
  4. Step 4: Simplify right side
    3,155.94x = 7,967,965.97
  5. Step 5: Solve for x
    x = 7,967,965.97/3,155.94
  6. Step 6: Final answer
    x = 2,524.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.