Home / 2,309.29-3,187.06-1,365.39

Finding the Fourth Proportional to 2,309.29, 3,187.06 and 1,365.39

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Solution

The fourth proportional to 2,309.29, 3,187.06 and 1,365.39 is: 1,884.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.29 : 3,187.06 = 1,365.39 : x
  2. Step 2: Convert to fraction form
    2,309.29/3,187.06 = 1,365.39/x
  3. Step 3: Cross multiply
    2,309.29x = 3,187.06 × 1,365.39
  4. Step 4: Simplify right side
    2,309.29x = 4,351,578.36
  5. Step 5: Solve for x
    x = 4,351,578.36/2,309.29
  6. Step 6: Final answer
    x = 1,884.38

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1.5x scale

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.