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Finding the Fourth Proportional to 5,611.81, 8,412.62 and 3,525.50

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Solution

The fourth proportional to 5,611.81, 8,412.62 and 3,525.50 is: 5,285.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.81 : 8,412.62 = 3,525.50 : x
  2. Step 2: Convert to fraction form
    5,611.81/8,412.62 = 3,525.50/x
  3. Step 3: Cross multiply
    5,611.81x = 8,412.62 × 3,525.50
  4. Step 4: Simplify right side
    5,611.81x = 29,658,691.81
  5. Step 5: Solve for x
    x = 29,658,691.81/5,611.81
  6. Step 6: Final answer
    x = 5,285.05

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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.