Home / 3,420.20-4,721.05-2,004.35

Finding the Fourth Proportional to 3,420.20, 4,721.05 and 2,004.35

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Solution

The fourth proportional to 3,420.20, 4,721.05 and 2,004.35 is: 2,766.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.20 : 4,721.05 = 2,004.35 : x
  2. Step 2: Convert to fraction form
    3,420.20/4,721.05 = 2,004.35/x
  3. Step 3: Cross multiply
    3,420.20x = 4,721.05 × 2,004.35
  4. Step 4: Simplify right side
    3,420.20x = 9,462,615.47
  5. Step 5: Solve for x
    x = 9,462,615.47/3,420.20
  6. Step 6: Final answer
    x = 2,766.68

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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.