Home / 2,310.49-3,189.14-1,316.31

Finding the Fourth Proportional to 2,310.49, 3,189.14 and 1,316.31

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Solution

The fourth proportional to 2,310.49, 3,189.14 and 1,316.31 is: 1,816.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.49 : 3,189.14 = 1,316.31 : x
  2. Step 2: Convert to fraction form
    2,310.49/3,189.14 = 1,316.31/x
  3. Step 3: Cross multiply
    2,310.49x = 3,189.14 × 1,316.31
  4. Step 4: Simplify right side
    2,310.49x = 4,197,896.87
  5. Step 5: Solve for x
    x = 4,197,896.87/2,310.49
  6. Step 6: Final answer
    x = 1,816.89

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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.