Home / 7,937.20-11,889.60-3,764.56

Finding the Fourth Proportional to 7,937.20, 11,889.60 and 3,764.56

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Solution

The fourth proportional to 7,937.20, 11,889.60 and 3,764.56 is: 5,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.20 : 11,889.60 = 3,764.56 : x
  2. Step 2: Convert to fraction form
    7,937.20/11,889.60 = 3,764.56/x
  3. Step 3: Cross multiply
    7,937.20x = 11,889.60 × 3,764.56
  4. Step 4: Simplify right side
    7,937.20x = 44,759,112.58
  5. Step 5: Solve for x
    x = 44,759,112.58/7,937.20
  6. Step 6: Final answer
    x = 5,639.16

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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.