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Finding the Fourth Proportional to 3,293.57, 4,919.32 and 2,980.74

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Solution

The fourth proportional to 3,293.57, 4,919.32 and 2,980.74 is: 4,452.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,293.57 : 4,919.32 = 2,980.74 : x
  2. Step 2: Convert to fraction form
    3,293.57/4,919.32 = 2,980.74/x
  3. Step 3: Cross multiply
    3,293.57x = 4,919.32 × 2,980.74
  4. Step 4: Simplify right side
    3,293.57x = 14,663,213.90
  5. Step 5: Solve for x
    x = 14,663,213.90/3,293.57
  6. Step 6: Final answer
    x = 4,452.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.