Home / 5,836-8,749.36-2,912.72

Finding the Fourth Proportional to 5,836, 8,749.36 and 2,912.72

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Solution

The fourth proportional to 5,836, 8,749.36 and 2,912.72 is: 4,366.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,836 : 8,749.36 = 2,912.72 : x
  2. Step 2: Convert to fraction form
    5,836/8,749.36 = 2,912.72/x
  3. Step 3: Cross multiply
    5,836x = 8,749.36 × 2,912.72
  4. Step 4: Simplify right side
    5,836x = 25,484,435.86
  5. Step 5: Solve for x
    x = 25,484,435.86/5,836
  6. Step 6: Final answer
    x = 4,366.76

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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.