Home / 2,669.04-4,004.22-820.08

Finding the Fourth Proportional to 2,669.04, 4,004.22 and 820.08

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Solution

The fourth proportional to 2,669.04, 4,004.22 and 820.08 is: 1,230.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.04 : 4,004.22 = 820.08 : x
  2. Step 2: Convert to fraction form
    2,669.04/4,004.22 = 820.08/x
  3. Step 3: Cross multiply
    2,669.04x = 4,004.22 × 820.08
  4. Step 4: Simplify right side
    2,669.04x = 3,283,780.74
  5. Step 5: Solve for x
    x = 3,283,780.74/2,669.04
  6. Step 6: Final answer
    x = 1,230.32

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1.5x scale

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.