Home / 3,004.20-4,147.32-1,885.80

Finding the Fourth Proportional to 3,004.20, 4,147.32 and 1,885.80

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Solution

The fourth proportional to 3,004.20, 4,147.32 and 1,885.80 is: 2,603.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,004.20 : 4,147.32 = 1,885.80 : x
  2. Step 2: Convert to fraction form
    3,004.20/4,147.32 = 1,885.80/x
  3. Step 3: Cross multiply
    3,004.20x = 4,147.32 × 1,885.80
  4. Step 4: Simplify right side
    3,004.20x = 7,821,016.06
  5. Step 5: Solve for x
    x = 7,821,016.06/3,004.20
  6. Step 6: Final answer
    x = 2,603.36

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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.