Home / 3,419.88-4,720.23-2,859.38

Finding the Fourth Proportional to 3,419.88, 4,720.23 and 2,859.38

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Solution

The fourth proportional to 3,419.88, 4,720.23 and 2,859.38 is: 3,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.88 : 4,720.23 = 2,859.38 : x
  2. Step 2: Convert to fraction form
    3,419.88/4,720.23 = 2,859.38/x
  3. Step 3: Cross multiply
    3,419.88x = 4,720.23 × 2,859.38
  4. Step 4: Simplify right side
    3,419.88x = 13,496,907.66
  5. Step 5: Solve for x
    x = 13,496,907.66/3,419.88
  6. Step 6: Final answer
    x = 3,946.60

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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.