Home / 3,110.06-4,665.20-1,378.69

Finding the Fourth Proportional to 3,110.06, 4,665.20 and 1,378.69

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Solution

The fourth proportional to 3,110.06, 4,665.20 and 1,378.69 is: 2,068.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.06 : 4,665.20 = 1,378.69 : x
  2. Step 2: Convert to fraction form
    3,110.06/4,665.20 = 1,378.69/x
  3. Step 3: Cross multiply
    3,110.06x = 4,665.20 × 1,378.69
  4. Step 4: Simplify right side
    3,110.06x = 6,431,846.03
  5. Step 5: Solve for x
    x = 6,431,846.03/3,110.06
  6. Step 6: Final answer
    x = 2,068.08

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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.