Home / 6,744.28-9,307.19-3,911.77

Finding the Fourth Proportional to 6,744.28, 9,307.19 and 3,911.77

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Solution

The fourth proportional to 6,744.28, 9,307.19 and 3,911.77 is: 5,398.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,744.28 : 9,307.19 = 3,911.77 : x
  2. Step 2: Convert to fraction form
    6,744.28/9,307.19 = 3,911.77/x
  3. Step 3: Cross multiply
    6,744.28x = 9,307.19 × 3,911.77
  4. Step 4: Simplify right side
    6,744.28x = 36,407,567.07
  5. Step 5: Solve for x
    x = 36,407,567.07/6,744.28
  6. Step 6: Final answer
    x = 5,398.29

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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.