Home / 2,051.55-3,079.40-1,384.38

Finding the Fourth Proportional to 2,051.55, 3,079.40 and 1,384.38

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Solution

The fourth proportional to 2,051.55, 3,079.40 and 1,384.38 is: 2,077.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.55 : 3,079.40 = 1,384.38 : x
  2. Step 2: Convert to fraction form
    2,051.55/3,079.40 = 1,384.38/x
  3. Step 3: Cross multiply
    2,051.55x = 3,079.40 × 1,384.38
  4. Step 4: Simplify right side
    2,051.55x = 4,263,052.85
  5. Step 5: Solve for x
    x = 4,263,052.85/2,051.55
  6. Step 6: Final answer
    x = 2,077.97

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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.