Home / 7,640.20-11,460.30-2,446.60

Finding the Fourth Proportional to 7,640.20, 11,460.30 and 2,446.60

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Solution

The fourth proportional to 7,640.20, 11,460.30 and 2,446.60 is: 3,669.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.20 : 11,460.30 = 2,446.60 : x
  2. Step 2: Convert to fraction form
    7,640.20/11,460.30 = 2,446.60/x
  3. Step 3: Cross multiply
    7,640.20x = 11,460.30 × 2,446.60
  4. Step 4: Simplify right side
    7,640.20x = 28,038,769.98
  5. Step 5: Solve for x
    x = 28,038,769.98/7,640.20
  6. Step 6: Final answer
    x = 3,669.90

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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.