Home / 4,889.64-7,304.76-3,120.60

Finding the Fourth Proportional to 4,889.64, 7,304.76 and 3,120.60

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Solution

The fourth proportional to 4,889.64, 7,304.76 and 3,120.60 is: 4,661.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.64 : 7,304.76 = 3,120.60 : x
  2. Step 2: Convert to fraction form
    4,889.64/7,304.76 = 3,120.60/x
  3. Step 3: Cross multiply
    4,889.64x = 7,304.76 × 3,120.60
  4. Step 4: Simplify right side
    4,889.64x = 22,795,234.06
  5. Step 5: Solve for x
    x = 22,795,234.06/4,889.64
  6. Step 6: Final answer
    x = 4,661.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.