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Finding the Fourth Proportional to 7,642.66, 10,546.50 and 4,285.84

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Solution

The fourth proportional to 7,642.66, 10,546.50 and 4,285.84 is: 5,914.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,642.66 : 10,546.50 = 4,285.84 : x
  2. Step 2: Convert to fraction form
    7,642.66/10,546.50 = 4,285.84/x
  3. Step 3: Cross multiply
    7,642.66x = 10,546.50 × 4,285.84
  4. Step 4: Simplify right side
    7,642.66x = 45,200,611.56
  5. Step 5: Solve for x
    x = 45,200,611.56/7,642.66
  6. Step 6: Final answer
    x = 5,914.25

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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.