Home / 5,856.39-8,785.76-2,158.64

Finding the Fourth Proportional to 5,856.39, 8,785.76 and 2,158.64

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Solution

The fourth proportional to 5,856.39, 8,785.76 and 2,158.64 is: 3,238.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,856.39 : 8,785.76 = 2,158.64 : x
  2. Step 2: Convert to fraction form
    5,856.39/8,785.76 = 2,158.64/x
  3. Step 3: Cross multiply
    5,856.39x = 8,785.76 × 2,158.64
  4. Step 4: Simplify right side
    5,856.39x = 18,965,276.40
  5. Step 5: Solve for x
    x = 18,965,276.40/5,856.39
  6. Step 6: Final answer
    x = 3,238.39

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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.