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Finding the Fourth Proportional to 6,274.89, 8,655.75 and 3,912.93

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Solution

The fourth proportional to 6,274.89, 8,655.75 and 3,912.93 is: 5,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,274.89 : 8,655.75 = 3,912.93 : x
  2. Step 2: Convert to fraction form
    6,274.89/8,655.75 = 3,912.93/x
  3. Step 3: Cross multiply
    6,274.89x = 8,655.75 × 3,912.93
  4. Step 4: Simplify right side
    6,274.89x = 33,869,343.85
  5. Step 5: Solve for x
    x = 33,869,343.85/6,274.89
  6. Step 6: Final answer
    x = 5,397.60

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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.