Home / 3,929.43-5,421.08-2,249.94

Finding the Fourth Proportional to 3,929.43, 5,421.08 and 2,249.94

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Solution

The fourth proportional to 3,929.43, 5,421.08 and 2,249.94 is: 3,104.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.43 : 5,421.08 = 2,249.94 : x
  2. Step 2: Convert to fraction form
    3,929.43/5,421.08 = 2,249.94/x
  3. Step 3: Cross multiply
    3,929.43x = 5,421.08 × 2,249.94
  4. Step 4: Simplify right side
    3,929.43x = 12,197,075.46
  5. Step 5: Solve for x
    x = 12,197,075.46/3,929.43
  6. Step 6: Final answer
    x = 3,104.03

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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.