Home / 3,111.06-4,290-2,403.03

Finding the Fourth Proportional to 3,111.06, 4,290 and 2,403.03

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Solution

The fourth proportional to 3,111.06, 4,290 and 2,403.03 is: 3,313.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.06 : 4,290 = 2,403.03 : x
  2. Step 2: Convert to fraction form
    3,111.06/4,290 = 2,403.03/x
  3. Step 3: Cross multiply
    3,111.06x = 4,290 × 2,403.03
  4. Step 4: Simplify right side
    3,111.06x = 10,308,998.70
  5. Step 5: Solve for x
    x = 10,308,998.70/3,111.06
  6. Step 6: Final answer
    x = 3,313.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.