Home / 3,221-4,830.16-2,181.27

Finding the Fourth Proportional to 3,221, 4,830.16 and 2,181.27

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Solution

The fourth proportional to 3,221, 4,830.16 and 2,181.27 is: 3,271.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221 : 4,830.16 = 2,181.27 : x
  2. Step 2: Convert to fraction form
    3,221/4,830.16 = 2,181.27/x
  3. Step 3: Cross multiply
    3,221x = 4,830.16 × 2,181.27
  4. Step 4: Simplify right side
    3,221x = 10,535,883.10
  5. Step 5: Solve for x
    x = 10,535,883.10/3,221
  6. Step 6: Final answer
    x = 3,271.00

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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.