Home / 7,104.91-9,804.84-3,918.33

Finding the Fourth Proportional to 7,104.91, 9,804.84 and 3,918.33

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Solution

The fourth proportional to 7,104.91, 9,804.84 and 3,918.33 is: 5,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.91 : 9,804.84 = 3,918.33 : x
  2. Step 2: Convert to fraction form
    7,104.91/9,804.84 = 3,918.33/x
  3. Step 3: Cross multiply
    7,104.91x = 9,804.84 × 3,918.33
  4. Step 4: Simplify right side
    7,104.91x = 38,418,598.72
  5. Step 5: Solve for x
    x = 38,418,598.72/7,104.91
  6. Step 6: Final answer
    x = 5,407.33

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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.