Home / 3,177.12-4,765.99-1,328.81

Finding the Fourth Proportional to 3,177.12, 4,765.99 and 1,328.81

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Solution

The fourth proportional to 3,177.12, 4,765.99 and 1,328.81 is: 1,993.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.12 : 4,765.99 = 1,328.81 : x
  2. Step 2: Convert to fraction form
    3,177.12/4,765.99 = 1,328.81/x
  3. Step 3: Cross multiply
    3,177.12x = 4,765.99 × 1,328.81
  4. Step 4: Simplify right side
    3,177.12x = 6,333,095.17
  5. Step 5: Solve for x
    x = 6,333,095.17/3,177.12
  6. Step 6: Final answer
    x = 1,993.34

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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.