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Finding the Fourth Proportional to 6,361.08, 8,785.16 and 4,961.40

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Solution

The fourth proportional to 6,361.08, 8,785.16 and 4,961.40 is: 6,852.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.08 : 8,785.16 = 4,961.40 : x
  2. Step 2: Convert to fraction form
    6,361.08/8,785.16 = 4,961.40/x
  3. Step 3: Cross multiply
    6,361.08x = 8,785.16 × 4,961.40
  4. Step 4: Simplify right side
    6,361.08x = 43,586,668.02
  5. Step 5: Solve for x
    x = 43,586,668.02/6,361.08
  6. Step 6: Final answer
    x = 6,852.09

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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.