Home / 5,368.84-8,051.70-2,081.20

Finding the Fourth Proportional to 5,368.84, 8,051.70 and 2,081.20

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Solution

The fourth proportional to 5,368.84, 8,051.70 and 2,081.20 is: 3,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,368.84 : 8,051.70 = 2,081.20 : x
  2. Step 2: Convert to fraction form
    5,368.84/8,051.70 = 2,081.20/x
  3. Step 3: Cross multiply
    5,368.84x = 8,051.70 × 2,081.20
  4. Step 4: Simplify right side
    5,368.84x = 16,757,198.04
  5. Step 5: Solve for x
    x = 16,757,198.04/5,368.84
  6. Step 6: Final answer
    x = 3,121.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.