Home / 7,823.58-11,728.14-2,889.48

Finding the Fourth Proportional to 7,823.58, 11,728.14 and 2,889.48

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Solution

The fourth proportional to 7,823.58, 11,728.14 and 2,889.48 is: 4,331.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,823.58 : 11,728.14 = 2,889.48 : x
  2. Step 2: Convert to fraction form
    7,823.58/11,728.14 = 2,889.48/x
  3. Step 3: Cross multiply
    7,823.58x = 11,728.14 × 2,889.48
  4. Step 4: Simplify right side
    7,823.58x = 33,888,225.97
  5. Step 5: Solve for x
    x = 33,888,225.97/7,823.58
  6. Step 6: Final answer
    x = 4,331.55

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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.