Home / 2,309.94-3,187.80-1,365.30

Finding the Fourth Proportional to 2,309.94, 3,187.80 and 1,365.30

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Solution

The fourth proportional to 2,309.94, 3,187.80 and 1,365.30 is: 1,884.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.94 : 3,187.80 = 1,365.30 : x
  2. Step 2: Convert to fraction form
    2,309.94/3,187.80 = 1,365.30/x
  3. Step 3: Cross multiply
    2,309.94x = 3,187.80 × 1,365.30
  4. Step 4: Simplify right side
    2,309.94x = 4,352,303.34
  5. Step 5: Solve for x
    x = 4,352,303.34/2,309.94
  6. Step 6: Final answer
    x = 1,884.16

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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.