Home / 3,427.54-5,140.14-1,118.50

Finding the Fourth Proportional to 3,427.54, 5,140.14 and 1,118.50

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Solution

The fourth proportional to 3,427.54, 5,140.14 and 1,118.50 is: 1,677.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.54 : 5,140.14 = 1,118.50 : x
  2. Step 2: Convert to fraction form
    3,427.54/5,140.14 = 1,118.50/x
  3. Step 3: Cross multiply
    3,427.54x = 5,140.14 × 1,118.50
  4. Step 4: Simplify right side
    3,427.54x = 5,749,246.59
  5. Step 5: Solve for x
    x = 5,749,246.59/3,427.54
  6. Step 6: Final answer
    x = 1,677.37

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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.