Home / 2,936.12-4,051.15-2,148.80

Finding the Fourth Proportional to 2,936.12, 4,051.15 and 2,148.80

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Solution

The fourth proportional to 2,936.12, 4,051.15 and 2,148.80 is: 2,964.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.12 : 4,051.15 = 2,148.80 : x
  2. Step 2: Convert to fraction form
    2,936.12/4,051.15 = 2,148.80/x
  3. Step 3: Cross multiply
    2,936.12x = 4,051.15 × 2,148.80
  4. Step 4: Simplify right side
    2,936.12x = 8,705,085.49
  5. Step 5: Solve for x
    x = 8,705,085.49/2,936.12
  6. Step 6: Final answer
    x = 2,964.83

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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.