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Finding the Fourth Proportional to 6,308.53, 8,703.95 and 4,071.71

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Solution

The fourth proportional to 6,308.53, 8,703.95 and 4,071.71 is: 5,617.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,308.53 : 8,703.95 = 4,071.71 : x
  2. Step 2: Convert to fraction form
    6,308.53/8,703.95 = 4,071.71/x
  3. Step 3: Cross multiply
    6,308.53x = 8,703.95 × 4,071.71
  4. Step 4: Simplify right side
    6,308.53x = 35,439,961.66
  5. Step 5: Solve for x
    x = 35,439,961.66/6,308.53
  6. Step 6: Final answer
    x = 5,617.79

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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.