Home / 5,178.21-7,759.63-3,803.49

Finding the Fourth Proportional to 5,178.21, 7,759.63 and 3,803.49

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Solution

The fourth proportional to 5,178.21, 7,759.63 and 3,803.49 is: 5,699.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.21 : 7,759.63 = 3,803.49 : x
  2. Step 2: Convert to fraction form
    5,178.21/7,759.63 = 3,803.49/x
  3. Step 3: Cross multiply
    5,178.21x = 7,759.63 × 3,803.49
  4. Step 4: Simplify right side
    5,178.21x = 29,513,643.63
  5. Step 5: Solve for x
    x = 29,513,643.63/5,178.21
  6. Step 6: Final answer
    x = 5,699.59

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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.