Home / 5,211.84-7,816.32-1,747.20

Finding the Fourth Proportional to 5,211.84, 7,816.32 and 1,747.20

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Solution

The fourth proportional to 5,211.84, 7,816.32 and 1,747.20 is: 2,620.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.84 : 7,816.32 = 1,747.20 : x
  2. Step 2: Convert to fraction form
    5,211.84/7,816.32 = 1,747.20/x
  3. Step 3: Cross multiply
    5,211.84x = 7,816.32 × 1,747.20
  4. Step 4: Simplify right side
    5,211.84x = 13,656,674.30
  5. Step 5: Solve for x
    x = 13,656,674.30/5,211.84
  6. Step 6: Final answer
    x = 2,620.32

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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.