Home / 7,051.15-9,729.57-3,907.33

Finding the Fourth Proportional to 7,051.15, 9,729.57 and 3,907.33

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Solution

The fourth proportional to 7,051.15, 9,729.57 and 3,907.33 is: 5,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,051.15 : 9,729.57 = 3,907.33 : x
  2. Step 2: Convert to fraction form
    7,051.15/9,729.57 = 3,907.33/x
  3. Step 3: Cross multiply
    7,051.15x = 9,729.57 × 3,907.33
  4. Step 4: Simplify right side
    7,051.15x = 38,016,640.75
  5. Step 5: Solve for x
    x = 38,016,640.75/7,051.15
  6. Step 6: Final answer
    x = 5,391.55

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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.