Home / 7,611.25-11,415.12-2,929.72

Finding the Fourth Proportional to 7,611.25, 11,415.12 and 2,929.72

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Solution

The fourth proportional to 7,611.25, 11,415.12 and 2,929.72 is: 4,393.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.25 : 11,415.12 = 2,929.72 : x
  2. Step 2: Convert to fraction form
    7,611.25/11,415.12 = 2,929.72/x
  3. Step 3: Cross multiply
    7,611.25x = 11,415.12 × 2,929.72
  4. Step 4: Simplify right side
    7,611.25x = 33,443,105.37
  5. Step 5: Solve for x
    x = 33,443,105.37/7,611.25
  6. Step 6: Final answer
    x = 4,393.90

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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.