Home / 5,113.03-7,679.27-3,178.75

Finding the Fourth Proportional to 5,113.03, 7,679.27 and 3,178.75

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Solution

The fourth proportional to 5,113.03, 7,679.27 and 3,178.75 is: 4,774.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.03 : 7,679.27 = 3,178.75 : x
  2. Step 2: Convert to fraction form
    5,113.03/7,679.27 = 3,178.75/x
  3. Step 3: Cross multiply
    5,113.03x = 7,679.27 × 3,178.75
  4. Step 4: Simplify right side
    5,113.03x = 24,410,479.51
  5. Step 5: Solve for x
    x = 24,410,479.51/5,113.03
  6. Step 6: Final answer
    x = 4,774.17

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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.