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Finding the Fourth Proportional to 3,079.84, 4,611.48 and 2,345.92

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Solution

The fourth proportional to 3,079.84, 4,611.48 and 2,345.92 is: 3,512.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.84 : 4,611.48 = 2,345.92 : x
  2. Step 2: Convert to fraction form
    3,079.84/4,611.48 = 2,345.92/x
  3. Step 3: Cross multiply
    3,079.84x = 4,611.48 × 2,345.92
  4. Step 4: Simplify right side
    3,079.84x = 10,818,163.16
  5. Step 5: Solve for x
    x = 10,818,163.16/3,079.84
  6. Step 6: Final answer
    x = 3,512.57

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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.