Home / 3,019.77-4,165.37-2,181.71

Finding the Fourth Proportional to 3,019.77, 4,165.37 and 2,181.71

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Solution

The fourth proportional to 3,019.77, 4,165.37 and 2,181.71 is: 3,009.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.77 : 4,165.37 = 2,181.71 : x
  2. Step 2: Convert to fraction form
    3,019.77/4,165.37 = 2,181.71/x
  3. Step 3: Cross multiply
    3,019.77x = 4,165.37 × 2,181.71
  4. Step 4: Simplify right side
    3,019.77x = 9,087,597.65
  5. Step 5: Solve for x
    x = 9,087,597.65/3,019.77
  6. Step 6: Final answer
    x = 3,009.37

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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.