Home / 3,399.37-4,691.21-1,907.40

Finding the Fourth Proportional to 3,399.37, 4,691.21 and 1,907.40

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Solution

The fourth proportional to 3,399.37, 4,691.21 and 1,907.40 is: 2,632.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.37 : 4,691.21 = 1,907.40 : x
  2. Step 2: Convert to fraction form
    3,399.37/4,691.21 = 1,907.40/x
  3. Step 3: Cross multiply
    3,399.37x = 4,691.21 × 1,907.40
  4. Step 4: Simplify right side
    3,399.37x = 8,947,986.82
  5. Step 5: Solve for x
    x = 8,947,986.82/3,399.37
  6. Step 6: Final answer
    x = 2,632.25

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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.