Home / 6,907.15-9,529.36-3,921.26

Finding the Fourth Proportional to 6,907.15, 9,529.36 and 3,921.26

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Solution

The fourth proportional to 6,907.15, 9,529.36 and 3,921.26 is: 5,409.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,907.15 : 9,529.36 = 3,921.26 : x
  2. Step 2: Convert to fraction form
    6,907.15/9,529.36 = 3,921.26/x
  3. Step 3: Cross multiply
    6,907.15x = 9,529.36 × 3,921.26
  4. Step 4: Simplify right side
    6,907.15x = 37,367,099.86
  5. Step 5: Solve for x
    x = 37,367,099.86/6,907.15
  6. Step 6: Final answer
    x = 5,409.91

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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.