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Finding the Fourth Proportional to 6,228.60, 9,342.88 and 4,274.88

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Solution

The fourth proportional to 6,228.60, 9,342.88 and 4,274.88 is: 6,412.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,228.60 : 9,342.88 = 4,274.88 : x
  2. Step 2: Convert to fraction form
    6,228.60/9,342.88 = 4,274.88/x
  3. Step 3: Cross multiply
    6,228.60x = 9,342.88 × 4,274.88
  4. Step 4: Simplify right side
    6,228.60x = 39,939,690.85
  5. Step 5: Solve for x
    x = 39,939,690.85/6,228.60
  6. Step 6: Final answer
    x = 6,412.31

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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.