Home / 3,926.85-5,417.42-3,429.51

Finding the Fourth Proportional to 3,926.85, 5,417.42 and 3,429.51

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Solution

The fourth proportional to 3,926.85, 5,417.42 and 3,429.51 is: 4,731.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.85 : 5,417.42 = 3,429.51 : x
  2. Step 2: Convert to fraction form
    3,926.85/5,417.42 = 3,429.51/x
  3. Step 3: Cross multiply
    3,926.85x = 5,417.42 × 3,429.51
  4. Step 4: Simplify right side
    3,926.85x = 18,579,078.92
  5. Step 5: Solve for x
    x = 18,579,078.92/3,926.85
  6. Step 6: Final answer
    x = 4,731.29

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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.