Home / 2,110.81-3,162.96-877.18

Finding the Fourth Proportional to 2,110.81, 3,162.96 and 877.18

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Solution

The fourth proportional to 2,110.81, 3,162.96 and 877.18 is: 1,314.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.81 : 3,162.96 = 877.18 : x
  2. Step 2: Convert to fraction form
    2,110.81/3,162.96 = 877.18/x
  3. Step 3: Cross multiply
    2,110.81x = 3,162.96 × 877.18
  4. Step 4: Simplify right side
    2,110.81x = 2,774,485.25
  5. Step 5: Solve for x
    x = 2,774,485.25/2,110.81
  6. Step 6: Final answer
    x = 1,314.42

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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.