Home / 3,675.89-5,511.76-1,210.05

Finding the Fourth Proportional to 3,675.89, 5,511.76 and 1,210.05

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Solution

The fourth proportional to 3,675.89, 5,511.76 and 1,210.05 is: 1,814.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675.89 : 5,511.76 = 1,210.05 : x
  2. Step 2: Convert to fraction form
    3,675.89/5,511.76 = 1,210.05/x
  3. Step 3: Cross multiply
    3,675.89x = 5,511.76 × 1,210.05
  4. Step 4: Simplify right side
    3,675.89x = 6,669,505.19
  5. Step 5: Solve for x
    x = 6,669,505.19/3,675.89
  6. Step 6: Final answer
    x = 1,814.39

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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.