Home / 3,929.57-5,421.44-2,514.08

Finding the Fourth Proportional to 3,929.57, 5,421.44 and 2,514.08

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Solution

The fourth proportional to 3,929.57, 5,421.44 and 2,514.08 is: 3,468.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.57 : 5,421.44 = 2,514.08 : x
  2. Step 2: Convert to fraction form
    3,929.57/5,421.44 = 2,514.08/x
  3. Step 3: Cross multiply
    3,929.57x = 5,421.44 × 2,514.08
  4. Step 4: Simplify right side
    3,929.57x = 13,629,953.71
  5. Step 5: Solve for x
    x = 13,629,953.71/3,929.57
  6. Step 6: Final answer
    x = 3,468.56

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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.