Home / 3,420.86-4,720.16-2,004.48

Finding the Fourth Proportional to 3,420.86, 4,720.16 and 2,004.48

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Solution

The fourth proportional to 3,420.86, 4,720.16 and 2,004.48 is: 2,765.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.86 : 4,720.16 = 2,004.48 : x
  2. Step 2: Convert to fraction form
    3,420.86/4,720.16 = 2,004.48/x
  3. Step 3: Cross multiply
    3,420.86x = 4,720.16 × 2,004.48
  4. Step 4: Simplify right side
    3,420.86x = 9,461,432.69
  5. Step 5: Solve for x
    x = 9,461,432.69/3,420.86
  6. Step 6: Final answer
    x = 2,765.81

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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.