Home / 2,511.18-3,761.91-1,931.22

Finding the Fourth Proportional to 2,511.18, 3,761.91 and 1,931.22

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Solution

The fourth proportional to 2,511.18, 3,761.91 and 1,931.22 is: 2,893.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.18 : 3,761.91 = 1,931.22 : x
  2. Step 2: Convert to fraction form
    2,511.18/3,761.91 = 1,931.22/x
  3. Step 3: Cross multiply
    2,511.18x = 3,761.91 × 1,931.22
  4. Step 4: Simplify right side
    2,511.18x = 7,265,075.83
  5. Step 5: Solve for x
    x = 7,265,075.83/2,511.18
  6. Step 6: Final answer
    x = 2,893.09

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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.