Home / 4,234.40-6,375.80-3,975.20

Finding the Fourth Proportional to 4,234.40, 6,375.80 and 3,975.20

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Solution

The fourth proportional to 4,234.40, 6,375.80 and 3,975.20 is: 5,985.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,234.40 : 6,375.80 = 3,975.20 : x
  2. Step 2: Convert to fraction form
    4,234.40/6,375.80 = 3,975.20/x
  3. Step 3: Cross multiply
    4,234.40x = 6,375.80 × 3,975.20
  4. Step 4: Simplify right side
    4,234.40x = 25,345,080.16
  5. Step 5: Solve for x
    x = 25,345,080.16/4,234.40
  6. Step 6: Final answer
    x = 5,985.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.