Home / 3,065.40-4,229.90-1,738.84

Finding the Fourth Proportional to 3,065.40, 4,229.90 and 1,738.84

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Solution

The fourth proportional to 3,065.40, 4,229.90 and 1,738.84 is: 2,399.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.40 : 4,229.90 = 1,738.84 : x
  2. Step 2: Convert to fraction form
    3,065.40/4,229.90 = 1,738.84/x
  3. Step 3: Cross multiply
    3,065.40x = 4,229.90 × 1,738.84
  4. Step 4: Simplify right side
    3,065.40x = 7,355,119.32
  5. Step 5: Solve for x
    x = 7,355,119.32/3,065.40
  6. Step 6: Final answer
    x = 2,399.40

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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.