Home / 6,886.78-10,330.86-2,205.62

Finding the Fourth Proportional to 6,886.78, 10,330.86 and 2,205.62

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Solution

The fourth proportional to 6,886.78, 10,330.86 and 2,205.62 is: 3,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,886.78 : 10,330.86 = 2,205.62 : x
  2. Step 2: Convert to fraction form
    6,886.78/10,330.86 = 2,205.62/x
  3. Step 3: Cross multiply
    6,886.78x = 10,330.86 × 2,205.62
  4. Step 4: Simplify right side
    6,886.78x = 22,785,888.75
  5. Step 5: Solve for x
    x = 22,785,888.75/6,886.78
  6. Step 6: Final answer
    x = 3,308.64

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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.