Home / 1,315.44-1,968.48-1,162.32

Finding the Fourth Proportional to 1,315.44, 1,968.48 and 1,162.32

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Solution

The fourth proportional to 1,315.44, 1,968.48 and 1,162.32 is: 1,739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315.44 : 1,968.48 = 1,162.32 : x
  2. Step 2: Convert to fraction form
    1,315.44/1,968.48 = 1,162.32/x
  3. Step 3: Cross multiply
    1,315.44x = 1,968.48 × 1,162.32
  4. Step 4: Simplify right side
    1,315.44x = 2,288,003.67
  5. Step 5: Solve for x
    x = 2,288,003.67/1,315.44
  6. Step 6: Final answer
    x = 1,739.34

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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.