Home / 3,511.89-5,271.03-1,869.84

Finding the Fourth Proportional to 3,511.89, 5,271.03 and 1,869.84

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Solution

The fourth proportional to 3,511.89, 5,271.03 and 1,869.84 is: 2,806.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.89 : 5,271.03 = 1,869.84 : x
  2. Step 2: Convert to fraction form
    3,511.89/5,271.03 = 1,869.84/x
  3. Step 3: Cross multiply
    3,511.89x = 5,271.03 × 1,869.84
  4. Step 4: Simplify right side
    3,511.89x = 9,855,982.74
  5. Step 5: Solve for x
    x = 9,855,982.74/3,511.89
  6. Step 6: Final answer
    x = 2,806.46

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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.