Home / 3,421.07-4,720.78-2,004.57

Finding the Fourth Proportional to 3,421.07, 4,720.78 and 2,004.57

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Solution

The fourth proportional to 3,421.07, 4,720.78 and 2,004.57 is: 2,766.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.07 : 4,720.78 = 2,004.57 : x
  2. Step 2: Convert to fraction form
    3,421.07/4,720.78 = 2,004.57/x
  3. Step 3: Cross multiply
    3,421.07x = 4,720.78 × 2,004.57
  4. Step 4: Simplify right side
    3,421.07x = 9,463,133.96
  5. Step 5: Solve for x
    x = 9,463,133.96/3,421.07
  6. Step 6: Final answer
    x = 2,766.13

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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.