Home / 6,675.30-9,212.60-3,842.78

Finding the Fourth Proportional to 6,675.30, 9,212.60 and 3,842.78

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Solution

The fourth proportional to 6,675.30, 9,212.60 and 3,842.78 is: 5,303.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,675.30 : 9,212.60 = 3,842.78 : x
  2. Step 2: Convert to fraction form
    6,675.30/9,212.60 = 3,842.78/x
  3. Step 3: Cross multiply
    6,675.30x = 9,212.60 × 3,842.78
  4. Step 4: Simplify right side
    6,675.30x = 35,401,995.03
  5. Step 5: Solve for x
    x = 35,401,995.03/6,675.30
  6. Step 6: Final answer
    x = 5,303.43

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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.