Home / 3,858.84-5,317.47-2,794.77

Finding the Fourth Proportional to 3,858.84, 5,317.47 and 2,794.77

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Solution

The fourth proportional to 3,858.84, 5,317.47 and 2,794.77 is: 3,851.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.84 : 5,317.47 = 2,794.77 : x
  2. Step 2: Convert to fraction form
    3,858.84/5,317.47 = 2,794.77/x
  3. Step 3: Cross multiply
    3,858.84x = 5,317.47 × 2,794.77
  4. Step 4: Simplify right side
    3,858.84x = 14,861,105.63
  5. Step 5: Solve for x
    x = 14,861,105.63/3,858.84
  6. Step 6: Final answer
    x = 3,851.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.