Home / 4,200.80-6,300.32-1,427.42

Finding the Fourth Proportional to 4,200.80, 6,300.32 and 1,427.42

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Solution

The fourth proportional to 4,200.80, 6,300.32 and 1,427.42 is: 2,140.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.80 : 6,300.32 = 1,427.42 : x
  2. Step 2: Convert to fraction form
    4,200.80/6,300.32 = 1,427.42/x
  3. Step 3: Cross multiply
    4,200.80x = 6,300.32 × 1,427.42
  4. Step 4: Simplify right side
    4,200.80x = 8,993,211.39
  5. Step 5: Solve for x
    x = 8,993,211.39/4,200.80
  6. Step 6: Final answer
    x = 2,140.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.