Home / 6,743.20-10,114.80-2,125.60

Finding the Fourth Proportional to 6,743.20, 10,114.80 and 2,125.60

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Solution

The fourth proportional to 6,743.20, 10,114.80 and 2,125.60 is: 3,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,743.20 : 10,114.80 = 2,125.60 : x
  2. Step 2: Convert to fraction form
    6,743.20/10,114.80 = 2,125.60/x
  3. Step 3: Cross multiply
    6,743.20x = 10,114.80 × 2,125.60
  4. Step 4: Simplify right side
    6,743.20x = 21,500,018.88
  5. Step 5: Solve for x
    x = 21,500,018.88/6,743.20
  6. Step 6: Final answer
    x = 3,188.40

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1.5x scale

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.