Home / 7,838.22-11,758.35-4,140.59

Finding the Fourth Proportional to 7,838.22, 11,758.35 and 4,140.59

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Solution

The fourth proportional to 7,838.22, 11,758.35 and 4,140.59 is: 6,211.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838.22 : 11,758.35 = 4,140.59 : x
  2. Step 2: Convert to fraction form
    7,838.22/11,758.35 = 4,140.59/x
  3. Step 3: Cross multiply
    7,838.22x = 11,758.35 × 4,140.59
  4. Step 4: Simplify right side
    7,838.22x = 48,686,447.63
  5. Step 5: Solve for x
    x = 48,686,447.63/7,838.22
  6. Step 6: Final answer
    x = 6,211.42

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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.