Home / 3,119.45-4,305.26-2,001.65

Finding the Fourth Proportional to 3,119.45, 4,305.26 and 2,001.65

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Solution

The fourth proportional to 3,119.45, 4,305.26 and 2,001.65 is: 2,762.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.45 : 4,305.26 = 2,001.65 : x
  2. Step 2: Convert to fraction form
    3,119.45/4,305.26 = 2,001.65/x
  3. Step 3: Cross multiply
    3,119.45x = 4,305.26 × 2,001.65
  4. Step 4: Simplify right side
    3,119.45x = 8,617,607.16
  5. Step 5: Solve for x
    x = 8,617,607.16/3,119.45
  6. Step 6: Final answer
    x = 2,762.54

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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.