Home / 6,889.55-10,335.69-2,728.79

Finding the Fourth Proportional to 6,889.55, 10,335.69 and 2,728.79

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Solution

The fourth proportional to 6,889.55, 10,335.69 and 2,728.79 is: 4,093.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889.55 : 10,335.69 = 2,728.79 : x
  2. Step 2: Convert to fraction form
    6,889.55/10,335.69 = 2,728.79/x
  3. Step 3: Cross multiply
    6,889.55x = 10,335.69 × 2,728.79
  4. Step 4: Simplify right side
    6,889.55x = 28,203,875.84
  5. Step 5: Solve for x
    x = 28,203,875.84/6,889.55
  6. Step 6: Final answer
    x = 4,093.72

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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.