Home / 5,378.82-8,069.00-2,603.21

Finding the Fourth Proportional to 5,378.82, 8,069.00 and 2,603.21

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Solution

The fourth proportional to 5,378.82, 8,069.00 and 2,603.21 is: 3,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.82 : 8,069.00 = 2,603.21 : x
  2. Step 2: Convert to fraction form
    5,378.82/8,069.00 = 2,603.21/x
  3. Step 3: Cross multiply
    5,378.82x = 8,069.00 × 2,603.21
  4. Step 4: Simplify right side
    5,378.82x = 21,005,341.84
  5. Step 5: Solve for x
    x = 21,005,341.84/5,378.82
  6. Step 6: Final answer
    x = 3,905.19

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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.