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Finding the Fourth Proportional to 3,145.92, 4,718.88 and 1,759.02

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Solution

The fourth proportional to 3,145.92, 4,718.88 and 1,759.02 is: 2,638.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.92 : 4,718.88 = 1,759.02 : x
  2. Step 2: Convert to fraction form
    3,145.92/4,718.88 = 1,759.02/x
  3. Step 3: Cross multiply
    3,145.92x = 4,718.88 × 1,759.02
  4. Step 4: Simplify right side
    3,145.92x = 8,300,604.30
  5. Step 5: Solve for x
    x = 8,300,604.30/3,145.92
  6. Step 6: Final answer
    x = 2,638.53

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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.