Home / 8,570.33-12,856.40-2,725.57

Finding the Fourth Proportional to 8,570.33, 12,856.40 and 2,725.57

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Solution

The fourth proportional to 8,570.33, 12,856.40 and 2,725.57 is: 4,088.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,570.33 : 12,856.40 = 2,725.57 : x
  2. Step 2: Convert to fraction form
    8,570.33/12,856.40 = 2,725.57/x
  3. Step 3: Cross multiply
    8,570.33x = 12,856.40 × 2,725.57
  4. Step 4: Simplify right side
    8,570.33x = 35,040,992.82
  5. Step 5: Solve for x
    x = 35,040,992.82/8,570.33
  6. Step 6: Final answer
    x = 4,088.64

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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.