Home / 3,398.94-4,690.89-1,907.28

Finding the Fourth Proportional to 3,398.94, 4,690.89 and 1,907.28

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Solution

The fourth proportional to 3,398.94, 4,690.89 and 1,907.28 is: 2,632.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.94 : 4,690.89 = 1,907.28 : x
  2. Step 2: Convert to fraction form
    3,398.94/4,690.89 = 1,907.28/x
  3. Step 3: Cross multiply
    3,398.94x = 4,690.89 × 1,907.28
  4. Step 4: Simplify right side
    3,398.94x = 8,946,840.68
  5. Step 5: Solve for x
    x = 8,946,840.68/3,398.94
  6. Step 6: Final answer
    x = 2,632.24

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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.