Home / 3,355.65-4,630.66-1,939.12

Finding the Fourth Proportional to 3,355.65, 4,630.66 and 1,939.12

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Solution

The fourth proportional to 3,355.65, 4,630.66 and 1,939.12 is: 2,675.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.65 : 4,630.66 = 1,939.12 : x
  2. Step 2: Convert to fraction form
    3,355.65/4,630.66 = 1,939.12/x
  3. Step 3: Cross multiply
    3,355.65x = 4,630.66 × 1,939.12
  4. Step 4: Simplify right side
    3,355.65x = 8,979,388.99
  5. Step 5: Solve for x
    x = 8,979,388.99/3,355.65
  6. Step 6: Final answer
    x = 2,675.90

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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.