Home / 5,211.36-7,811.52-3,522.81

Finding the Fourth Proportional to 5,211.36, 7,811.52 and 3,522.81

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Solution

The fourth proportional to 5,211.36, 7,811.52 and 3,522.81 is: 5,280.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.36 : 7,811.52 = 3,522.81 : x
  2. Step 2: Convert to fraction form
    5,211.36/7,811.52 = 3,522.81/x
  3. Step 3: Cross multiply
    5,211.36x = 7,811.52 × 3,522.81
  4. Step 4: Simplify right side
    5,211.36x = 27,518,500.77
  5. Step 5: Solve for x
    x = 27,518,500.77/5,211.36
  6. Step 6: Final answer
    x = 5,280.48

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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.