Home / 6,675.90-9,209.85-4,021.79

Finding the Fourth Proportional to 6,675.90, 9,209.85 and 4,021.79

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Solution

The fourth proportional to 6,675.90, 9,209.85 and 4,021.79 is: 5,548.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,675.90 : 9,209.85 = 4,021.79 : x
  2. Step 2: Convert to fraction form
    6,675.90/9,209.85 = 4,021.79/x
  3. Step 3: Cross multiply
    6,675.90x = 9,209.85 × 4,021.79
  4. Step 4: Simplify right side
    6,675.90x = 37,040,036.58
  5. Step 5: Solve for x
    x = 37,040,036.58/6,675.90
  6. Step 6: Final answer
    x = 5,548.32

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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.