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Finding the Fourth Proportional to 7,622.61, 11,441.13 and 3,927.39

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Solution

The fourth proportional to 7,622.61, 11,441.13 and 3,927.39 is: 5,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.61 : 11,441.13 = 3,927.39 : x
  2. Step 2: Convert to fraction form
    7,622.61/11,441.13 = 3,927.39/x
  3. Step 3: Cross multiply
    7,622.61x = 11,441.13 × 3,927.39
  4. Step 4: Simplify right side
    7,622.61x = 44,933,779.55
  5. Step 5: Solve for x
    x = 44,933,779.55/7,622.61
  6. Step 6: Final answer
    x = 5,894.80

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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.