Home / 2,958.58-4,077.93-2,171.62

Finding the Fourth Proportional to 2,958.58, 4,077.93 and 2,171.62

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Solution

The fourth proportional to 2,958.58, 4,077.93 and 2,171.62 is: 2,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958.58 : 4,077.93 = 2,171.62 : x
  2. Step 2: Convert to fraction form
    2,958.58/4,077.93 = 2,171.62/x
  3. Step 3: Cross multiply
    2,958.58x = 4,077.93 × 2,171.62
  4. Step 4: Simplify right side
    2,958.58x = 8,855,714.35
  5. Step 5: Solve for x
    x = 8,855,714.35/2,958.58
  6. Step 6: Final answer
    x = 2,993.23

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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.