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Finding the Fourth Proportional to 1,520.83, 2,099.07 and 960.94

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Solution

The fourth proportional to 1,520.83, 2,099.07 and 960.94 is: 1,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.83 : 2,099.07 = 960.94 : x
  2. Step 2: Convert to fraction form
    1,520.83/2,099.07 = 960.94/x
  3. Step 3: Cross multiply
    1,520.83x = 2,099.07 × 960.94
  4. Step 4: Simplify right side
    1,520.83x = 2,017,077.92
  5. Step 5: Solve for x
    x = 2,017,077.92/1,520.83
  6. Step 6: Final answer
    x = 1,326.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.