Home / 3,420.04-4,707.60-2,474.30

Finding the Fourth Proportional to 3,420.04, 4,707.60 and 2,474.30

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Solution

The fourth proportional to 3,420.04, 4,707.60 and 2,474.30 is: 3,405.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.04 : 4,707.60 = 2,474.30 : x
  2. Step 2: Convert to fraction form
    3,420.04/4,707.60 = 2,474.30/x
  3. Step 3: Cross multiply
    3,420.04x = 4,707.60 × 2,474.30
  4. Step 4: Simplify right side
    3,420.04x = 11,648,014.68
  5. Step 5: Solve for x
    x = 11,648,014.68/3,420.04
  6. Step 6: Final answer
    x = 3,405.81

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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.