Home / 4,890.60-7,322.94-2,940.12

Finding the Fourth Proportional to 4,890.60, 7,322.94 and 2,940.12

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Solution

The fourth proportional to 4,890.60, 7,322.94 and 2,940.12 is: 4,402.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.60 : 7,322.94 = 2,940.12 : x
  2. Step 2: Convert to fraction form
    4,890.60/7,322.94 = 2,940.12/x
  3. Step 3: Cross multiply
    4,890.60x = 7,322.94 × 2,940.12
  4. Step 4: Simplify right side
    4,890.60x = 21,530,322.35
  5. Step 5: Solve for x
    x = 21,530,322.35/4,890.60
  6. Step 6: Final answer
    x = 4,402.39

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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.