Home / 5,511.52-8,266.80-1,813.68

Finding the Fourth Proportional to 5,511.52, 8,266.80 and 1,813.68

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Solution

The fourth proportional to 5,511.52, 8,266.80 and 1,813.68 is: 2,720.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511.52 : 8,266.80 = 1,813.68 : x
  2. Step 2: Convert to fraction form
    5,511.52/8,266.80 = 1,813.68/x
  3. Step 3: Cross multiply
    5,511.52x = 8,266.80 × 1,813.68
  4. Step 4: Simplify right side
    5,511.52x = 14,993,329.82
  5. Step 5: Solve for x
    x = 14,993,329.82/5,511.52
  6. Step 6: Final answer
    x = 2,720.36

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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.