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Finding the Fourth Proportional to 6,242.79, 8,611.80 and 4,226.25

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Solution

The fourth proportional to 6,242.79, 8,611.80 and 4,226.25 is: 5,830.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,242.79 : 8,611.80 = 4,226.25 : x
  2. Step 2: Convert to fraction form
    6,242.79/8,611.80 = 4,226.25/x
  3. Step 3: Cross multiply
    6,242.79x = 8,611.80 × 4,226.25
  4. Step 4: Simplify right side
    6,242.79x = 36,395,619.75
  5. Step 5: Solve for x
    x = 36,395,619.75/6,242.79
  6. Step 6: Final answer
    x = 5,830.02

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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.