Home / 5,856.35-8,780.41-2,158.09

Finding the Fourth Proportional to 5,856.35, 8,780.41 and 2,158.09

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Solution

The fourth proportional to 5,856.35, 8,780.41 and 2,158.09 is: 3,235.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,856.35 : 8,780.41 = 2,158.09 : x
  2. Step 2: Convert to fraction form
    5,856.35/8,780.41 = 2,158.09/x
  3. Step 3: Cross multiply
    5,856.35x = 8,780.41 × 2,158.09
  4. Step 4: Simplify right side
    5,856.35x = 18,948,915.02
  5. Step 5: Solve for x
    x = 18,948,915.02/5,856.35
  6. Step 6: Final answer
    x = 3,235.62

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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.