Home / 6,609.94-9,120.22-4,485.76

Finding the Fourth Proportional to 6,609.94, 9,120.22 and 4,485.76

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Solution

The fourth proportional to 6,609.94, 9,120.22 and 4,485.76 is: 6,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.94 : 9,120.22 = 4,485.76 : x
  2. Step 2: Convert to fraction form
    6,609.94/9,120.22 = 4,485.76/x
  3. Step 3: Cross multiply
    6,609.94x = 9,120.22 × 4,485.76
  4. Step 4: Simplify right side
    6,609.94x = 40,911,118.07
  5. Step 5: Solve for x
    x = 40,911,118.07/6,609.94
  6. Step 6: Final answer
    x = 6,189.33

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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.