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Finding the Fourth Proportional to 2,346.72, 3,520.08 and 960.08

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Solution

The fourth proportional to 2,346.72, 3,520.08 and 960.08 is: 1,440.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,346.72 : 3,520.08 = 960.08 : x
  2. Step 2: Convert to fraction form
    2,346.72/3,520.08 = 960.08/x
  3. Step 3: Cross multiply
    2,346.72x = 3,520.08 × 960.08
  4. Step 4: Simplify right side
    2,346.72x = 3,379,558.41
  5. Step 5: Solve for x
    x = 3,379,558.41/2,346.72
  6. Step 6: Final answer
    x = 1,440.12

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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.