Home / 5,236.91-7,856.61-1,539.05

Finding the Fourth Proportional to 5,236.91, 7,856.61 and 1,539.05

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Solution

The fourth proportional to 5,236.91, 7,856.61 and 1,539.05 is: 2,308.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,236.91 : 7,856.61 = 1,539.05 : x
  2. Step 2: Convert to fraction form
    5,236.91/7,856.61 = 1,539.05/x
  3. Step 3: Cross multiply
    5,236.91x = 7,856.61 × 1,539.05
  4. Step 4: Simplify right side
    5,236.91x = 12,091,735.26
  5. Step 5: Solve for x
    x = 12,091,735.26/5,236.91
  6. Step 6: Final answer
    x = 2,308.95

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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.