Home / 4,947.84-7,410.24-3,211.20

Finding the Fourth Proportional to 4,947.84, 7,410.24 and 3,211.20

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Solution

The fourth proportional to 4,947.84, 7,410.24 and 3,211.20 is: 4,809.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.84 : 7,410.24 = 3,211.20 : x
  2. Step 2: Convert to fraction form
    4,947.84/7,410.24 = 3,211.20/x
  3. Step 3: Cross multiply
    4,947.84x = 7,410.24 × 3,211.20
  4. Step 4: Simplify right side
    4,947.84x = 23,795,762.69
  5. Step 5: Solve for x
    x = 23,795,762.69/4,947.84
  6. Step 6: Final answer
    x = 4,809.32

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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.