Home / 6,645.36-9,170.64-4,284.48

Finding the Fourth Proportional to 6,645.36, 9,170.64 and 4,284.48

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Solution

The fourth proportional to 6,645.36, 9,170.64 and 4,284.48 is: 5,912.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.36 : 9,170.64 = 4,284.48 : x
  2. Step 2: Convert to fraction form
    6,645.36/9,170.64 = 4,284.48/x
  3. Step 3: Cross multiply
    6,645.36x = 9,170.64 × 4,284.48
  4. Step 4: Simplify right side
    6,645.36x = 39,291,423.67
  5. Step 5: Solve for x
    x = 39,291,423.67/6,645.36
  6. Step 6: Final answer
    x = 5,912.61

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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.