Home / 3,926.87-5,420.34-2,514.36

Finding the Fourth Proportional to 3,926.87, 5,420.34 and 2,514.36

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Solution

The fourth proportional to 3,926.87, 5,420.34 and 2,514.36 is: 3,470.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.87 : 5,420.34 = 2,514.36 : x
  2. Step 2: Convert to fraction form
    3,926.87/5,420.34 = 2,514.36/x
  3. Step 3: Cross multiply
    3,926.87x = 5,420.34 × 2,514.36
  4. Step 4: Simplify right side
    3,926.87x = 13,628,656.33
  5. Step 5: Solve for x
    x = 13,628,656.33/3,926.87
  6. Step 6: Final answer
    x = 3,470.62

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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.