Home / 1,958.23-2,703.21-1,172.13

Finding the Fourth Proportional to 1,958.23, 2,703.21 and 1,172.13

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Solution

The fourth proportional to 1,958.23, 2,703.21 and 1,172.13 is: 1,618.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.23 : 2,703.21 = 1,172.13 : x
  2. Step 2: Convert to fraction form
    1,958.23/2,703.21 = 1,172.13/x
  3. Step 3: Cross multiply
    1,958.23x = 2,703.21 × 1,172.13
  4. Step 4: Simplify right side
    1,958.23x = 3,168,513.54
  5. Step 5: Solve for x
    x = 3,168,513.54/1,958.23
  6. Step 6: Final answer
    x = 1,618.05

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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.