Home / 3,419.33-4,718.79-1,907.03

Finding the Fourth Proportional to 3,419.33, 4,718.79 and 1,907.03

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Solution

The fourth proportional to 3,419.33, 4,718.79 and 1,907.03 is: 2,631.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.33 : 4,718.79 = 1,907.03 : x
  2. Step 2: Convert to fraction form
    3,419.33/4,718.79 = 1,907.03/x
  3. Step 3: Cross multiply
    3,419.33x = 4,718.79 × 1,907.03
  4. Step 4: Simplify right side
    3,419.33x = 8,998,850.50
  5. Step 5: Solve for x
    x = 8,998,850.50/3,419.33
  6. Step 6: Final answer
    x = 2,631.76

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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.