Home / 5,236.85-7,856.53-1,539.20

Finding the Fourth Proportional to 5,236.85, 7,856.53 and 1,539.20

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Solution

The fourth proportional to 5,236.85, 7,856.53 and 1,539.20 is: 2,309.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,236.85 : 7,856.53 = 1,539.20 : x
  2. Step 2: Convert to fraction form
    5,236.85/7,856.53 = 1,539.20/x
  3. Step 3: Cross multiply
    5,236.85x = 7,856.53 × 1,539.20
  4. Step 4: Simplify right side
    5,236.85x = 12,092,786.77
  5. Step 5: Solve for x
    x = 12,092,786.77/5,236.85
  6. Step 6: Final answer
    x = 2,309.17

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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.