Home / 3,320.48-4,979.13-1,934.21

Finding the Fourth Proportional to 3,320.48, 4,979.13 and 1,934.21

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Solution

The fourth proportional to 3,320.48, 4,979.13 and 1,934.21 is: 2,900.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.48 : 4,979.13 = 1,934.21 : x
  2. Step 2: Convert to fraction form
    3,320.48/4,979.13 = 1,934.21/x
  3. Step 3: Cross multiply
    3,320.48x = 4,979.13 × 1,934.21
  4. Step 4: Simplify right side
    3,320.48x = 9,630,679.67
  5. Step 5: Solve for x
    x = 9,630,679.67/3,320.48
  6. Step 6: Final answer
    x = 2,900.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.