Home / 1,316.26-1,969.73-968.77

Finding the Fourth Proportional to 1,316.26, 1,969.73 and 968.77

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Solution

The fourth proportional to 1,316.26, 1,969.73 and 968.77 is: 1,449.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.26 : 1,969.73 = 968.77 : x
  2. Step 2: Convert to fraction form
    1,316.26/1,969.73 = 968.77/x
  3. Step 3: Cross multiply
    1,316.26x = 1,969.73 × 968.77
  4. Step 4: Simplify right side
    1,316.26x = 1,908,215.33
  5. Step 5: Solve for x
    x = 1,908,215.33/1,316.26
  6. Step 6: Final answer
    x = 1,449.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.