Home / 6,919.77-10,373.29-2,758.78

Finding the Fourth Proportional to 6,919.77, 10,373.29 and 2,758.78

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Solution

The fourth proportional to 6,919.77, 10,373.29 and 2,758.78 is: 4,135.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.77 : 10,373.29 = 2,758.78 : x
  2. Step 2: Convert to fraction form
    6,919.77/10,373.29 = 2,758.78/x
  3. Step 3: Cross multiply
    6,919.77x = 10,373.29 × 2,758.78
  4. Step 4: Simplify right side
    6,919.77x = 28,617,631.06
  5. Step 5: Solve for x
    x = 28,617,631.06/6,919.77
  6. Step 6: Final answer
    x = 4,135.63

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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.