Home / 7,611.48-11,415.90-2,679.96

Finding the Fourth Proportional to 7,611.48, 11,415.90 and 2,679.96

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Solution

The fourth proportional to 7,611.48, 11,415.90 and 2,679.96 is: 4,019.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.48 : 11,415.90 = 2,679.96 : x
  2. Step 2: Convert to fraction form
    7,611.48/11,415.90 = 2,679.96/x
  3. Step 3: Cross multiply
    7,611.48x = 11,415.90 × 2,679.96
  4. Step 4: Simplify right side
    7,611.48x = 30,594,155.36
  5. Step 5: Solve for x
    x = 30,594,155.36/7,611.48
  6. Step 6: Final answer
    x = 4,019.48

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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.