Home / 3,345.11-4,616.82-1,928.55

Finding the Fourth Proportional to 3,345.11, 4,616.82 and 1,928.55

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Solution

The fourth proportional to 3,345.11, 4,616.82 and 1,928.55 is: 2,661.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.11 : 4,616.82 = 1,928.55 : x
  2. Step 2: Convert to fraction form
    3,345.11/4,616.82 = 1,928.55/x
  3. Step 3: Cross multiply
    3,345.11x = 4,616.82 × 1,928.55
  4. Step 4: Simplify right side
    3,345.11x = 8,903,745.13
  5. Step 5: Solve for x
    x = 8,903,745.13/3,345.11
  6. Step 6: Final answer
    x = 2,661.72

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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.