Home / 5,039.81-7,554.61-1,919.01

Finding the Fourth Proportional to 5,039.81, 7,554.61 and 1,919.01

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Solution

The fourth proportional to 5,039.81, 7,554.61 and 1,919.01 is: 2,876.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,039.81 : 7,554.61 = 1,919.01 : x
  2. Step 2: Convert to fraction form
    5,039.81/7,554.61 = 1,919.01/x
  3. Step 3: Cross multiply
    5,039.81x = 7,554.61 × 1,919.01
  4. Step 4: Simplify right side
    5,039.81x = 14,497,372.14
  5. Step 5: Solve for x
    x = 14,497,372.14/5,039.81
  6. Step 6: Final answer
    x = 2,876.57

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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.