Home / 2,611.92-3,603.42-1,680.96

Finding the Fourth Proportional to 2,611.92, 3,603.42 and 1,680.96

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Solution

The fourth proportional to 2,611.92, 3,603.42 and 1,680.96 is: 2,319.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.92 : 3,603.42 = 1,680.96 : x
  2. Step 2: Convert to fraction form
    2,611.92/3,603.42 = 1,680.96/x
  3. Step 3: Cross multiply
    2,611.92x = 3,603.42 × 1,680.96
  4. Step 4: Simplify right side
    2,611.92x = 6,057,204.88
  5. Step 5: Solve for x
    x = 6,057,204.88/2,611.92
  6. Step 6: Final answer
    x = 2,319.06

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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.