Home / 3,280.08-4,919.85-1,892.55

Finding the Fourth Proportional to 3,280.08, 4,919.85 and 1,892.55

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Solution

The fourth proportional to 3,280.08, 4,919.85 and 1,892.55 is: 2,838.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.08 : 4,919.85 = 1,892.55 : x
  2. Step 2: Convert to fraction form
    3,280.08/4,919.85 = 1,892.55/x
  3. Step 3: Cross multiply
    3,280.08x = 4,919.85 × 1,892.55
  4. Step 4: Simplify right side
    3,280.08x = 9,311,062.12
  5. Step 5: Solve for x
    x = 9,311,062.12/3,280.08
  6. Step 6: Final answer
    x = 2,838.67

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1.5x scale

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.