Home / 7,711.20-11,539.44-4,790.88

Finding the Fourth Proportional to 7,711.20, 11,539.44 and 4,790.88

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Solution

The fourth proportional to 7,711.20, 11,539.44 and 4,790.88 is: 7,169.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711.20 : 11,539.44 = 4,790.88 : x
  2. Step 2: Convert to fraction form
    7,711.20/11,539.44 = 4,790.88/x
  3. Step 3: Cross multiply
    7,711.20x = 11,539.44 × 4,790.88
  4. Step 4: Simplify right side
    7,711.20x = 55,284,072.31
  5. Step 5: Solve for x
    x = 55,284,072.31/7,711.20
  6. Step 6: Final answer
    x = 7,169.32

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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.