Home / 3,168.34-4,375.96-2,420.64

Finding the Fourth Proportional to 3,168.34, 4,375.96 and 2,420.64

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Solution

The fourth proportional to 3,168.34, 4,375.96 and 2,420.64 is: 3,343.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.34 : 4,375.96 = 2,420.64 : x
  2. Step 2: Convert to fraction form
    3,168.34/4,375.96 = 2,420.64/x
  3. Step 3: Cross multiply
    3,168.34x = 4,375.96 × 2,420.64
  4. Step 4: Simplify right side
    3,168.34x = 10,592,617.76
  5. Step 5: Solve for x
    x = 10,592,617.76/3,168.34
  6. Step 6: Final answer
    x = 3,343.27

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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.