Home / 3,220.08-4,442.68-2,223.76

Finding the Fourth Proportional to 3,220.08, 4,442.68 and 2,223.76

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Solution

The fourth proportional to 3,220.08, 4,442.68 and 2,223.76 is: 3,068.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.08 : 4,442.68 = 2,223.76 : x
  2. Step 2: Convert to fraction form
    3,220.08/4,442.68 = 2,223.76/x
  3. Step 3: Cross multiply
    3,220.08x = 4,442.68 × 2,223.76
  4. Step 4: Simplify right side
    3,220.08x = 9,879,454.08
  5. Step 5: Solve for x
    x = 9,879,454.08/3,220.08
  6. Step 6: Final answer
    x = 3,068.08

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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.