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Finding the Fourth Proportional to 6,750.33, 9,315.48 and 3,918.26

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Solution

The fourth proportional to 6,750.33, 9,315.48 and 3,918.26 is: 5,407.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,750.33 : 9,315.48 = 3,918.26 : x
  2. Step 2: Convert to fraction form
    6,750.33/9,315.48 = 3,918.26/x
  3. Step 3: Cross multiply
    6,750.33x = 9,315.48 × 3,918.26
  4. Step 4: Simplify right side
    6,750.33x = 36,500,426.09
  5. Step 5: Solve for x
    x = 36,500,426.09/6,750.33
  6. Step 6: Final answer
    x = 5,407.21

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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.