Home / 3,926.08-5,421.50-2,929.62

Finding the Fourth Proportional to 3,926.08, 5,421.50 and 2,929.62

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Solution

The fourth proportional to 3,926.08, 5,421.50 and 2,929.62 is: 4,045.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.08 : 5,421.50 = 2,929.62 : x
  2. Step 2: Convert to fraction form
    3,926.08/5,421.50 = 2,929.62/x
  3. Step 3: Cross multiply
    3,926.08x = 5,421.50 × 2,929.62
  4. Step 4: Simplify right side
    3,926.08x = 15,882,934.83
  5. Step 5: Solve for x
    x = 15,882,934.83/3,926.08
  6. Step 6: Final answer
    x = 4,045.49

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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.