Home / 3,421.14-4,720.92-2,004.78

Finding the Fourth Proportional to 3,421.14, 4,720.92 and 2,004.78

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Solution

The fourth proportional to 3,421.14, 4,720.92 and 2,004.78 is: 2,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.14 : 4,720.92 = 2,004.78 : x
  2. Step 2: Convert to fraction form
    3,421.14/4,720.92 = 2,004.78/x
  3. Step 3: Cross multiply
    3,421.14x = 4,720.92 × 2,004.78
  4. Step 4: Simplify right side
    3,421.14x = 9,464,406.00
  5. Step 5: Solve for x
    x = 9,464,406.00/3,421.14
  6. Step 6: Final answer
    x = 2,766.45

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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.