Home / 3,511.89-5,263.79-1,430.73

Finding the Fourth Proportional to 3,511.89, 5,263.79 and 1,430.73

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Solution

The fourth proportional to 3,511.89, 5,263.79 and 1,430.73 is: 2,144.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.89 : 5,263.79 = 1,430.73 : x
  2. Step 2: Convert to fraction form
    3,511.89/5,263.79 = 1,430.73/x
  3. Step 3: Cross multiply
    3,511.89x = 5,263.79 × 1,430.73
  4. Step 4: Simplify right side
    3,511.89x = 7,531,055.11
  5. Step 5: Solve for x
    x = 7,531,055.11/3,511.89
  6. Step 6: Final answer
    x = 2,144.45

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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.