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Finding the Fourth Proportional to 3,280.77, 4,895.78 and 2,930.33

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Solution

The fourth proportional to 3,280.77, 4,895.78 and 2,930.33 is: 4,372.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.77 : 4,895.78 = 2,930.33 : x
  2. Step 2: Convert to fraction form
    3,280.77/4,895.78 = 2,930.33/x
  3. Step 3: Cross multiply
    3,280.77x = 4,895.78 × 2,930.33
  4. Step 4: Simplify right side
    3,280.77x = 14,346,248.60
  5. Step 5: Solve for x
    x = 14,346,248.60/3,280.77
  6. Step 6: Final answer
    x = 4,372.83

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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.