Home / 4,192.12-6,289.35-1,270.45

Finding the Fourth Proportional to 4,192.12, 6,289.35 and 1,270.45

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Solution

The fourth proportional to 4,192.12, 6,289.35 and 1,270.45 is: 1,906.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.12 : 6,289.35 = 1,270.45 : x
  2. Step 2: Convert to fraction form
    4,192.12/6,289.35 = 1,270.45/x
  3. Step 3: Cross multiply
    4,192.12x = 6,289.35 × 1,270.45
  4. Step 4: Simplify right side
    4,192.12x = 7,990,304.71
  5. Step 5: Solve for x
    x = 7,990,304.71/4,192.12
  6. Step 6: Final answer
    x = 1,906.03

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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.