Home / 3,619.46-5,430.74-1,539.92

Finding the Fourth Proportional to 3,619.46, 5,430.74 and 1,539.92

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Solution

The fourth proportional to 3,619.46, 5,430.74 and 1,539.92 is: 2,310.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.46 : 5,430.74 = 1,539.92 : x
  2. Step 2: Convert to fraction form
    3,619.46/5,430.74 = 1,539.92/x
  3. Step 3: Cross multiply
    3,619.46x = 5,430.74 × 1,539.92
  4. Step 4: Simplify right side
    3,619.46x = 8,362,870.29
  5. Step 5: Solve for x
    x = 8,362,870.29/3,619.46
  6. Step 6: Final answer
    x = 2,310.53

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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.