Home / 7,878.24-11,818.44-2,684.52

Finding the Fourth Proportional to 7,878.24, 11,818.44 and 2,684.52

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Solution

The fourth proportional to 7,878.24, 11,818.44 and 2,684.52 is: 4,027.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878.24 : 11,818.44 = 2,684.52 : x
  2. Step 2: Convert to fraction form
    7,878.24/11,818.44 = 2,684.52/x
  3. Step 3: Cross multiply
    7,878.24x = 11,818.44 × 2,684.52
  4. Step 4: Simplify right side
    7,878.24x = 31,726,838.55
  5. Step 5: Solve for x
    x = 31,726,838.55/7,878.24
  6. Step 6: Final answer
    x = 4,027.15

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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.