Home / 4,985.28-7,485.82-3,581.96

Finding the Fourth Proportional to 4,985.28, 7,485.82 and 3,581.96

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Solution

The fourth proportional to 4,985.28, 7,485.82 and 3,581.96 is: 5,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.28 : 7,485.82 = 3,581.96 : x
  2. Step 2: Convert to fraction form
    4,985.28/7,485.82 = 3,581.96/x
  3. Step 3: Cross multiply
    4,985.28x = 7,485.82 × 3,581.96
  4. Step 4: Simplify right side
    4,985.28x = 26,813,907.81
  5. Step 5: Solve for x
    x = 26,813,907.81/4,985.28
  6. Step 6: Final answer
    x = 5,378.62

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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.