Home / 8,102.40-12,152.16-2,908.32

Finding the Fourth Proportional to 8,102.40, 12,152.16 and 2,908.32

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Solution

The fourth proportional to 8,102.40, 12,152.16 and 2,908.32 is: 4,361.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.40 : 12,152.16 = 2,908.32 : x
  2. Step 2: Convert to fraction form
    8,102.40/12,152.16 = 2,908.32/x
  3. Step 3: Cross multiply
    8,102.40x = 12,152.16 × 2,908.32
  4. Step 4: Simplify right side
    8,102.40x = 35,342,369.97
  5. Step 5: Solve for x
    x = 35,342,369.97/8,102.40
  6. Step 6: Final answer
    x = 4,361.96

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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.