Home / 2,315.68-3,194.40-1,518.64

Finding the Fourth Proportional to 2,315.68, 3,194.40 and 1,518.64

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Solution

The fourth proportional to 2,315.68, 3,194.40 and 1,518.64 is: 2,094.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.68 : 3,194.40 = 1,518.64 : x
  2. Step 2: Convert to fraction form
    2,315.68/3,194.40 = 1,518.64/x
  3. Step 3: Cross multiply
    2,315.68x = 3,194.40 × 1,518.64
  4. Step 4: Simplify right side
    2,315.68x = 4,851,143.62
  5. Step 5: Solve for x
    x = 4,851,143.62/2,315.68
  6. Step 6: Final answer
    x = 2,094.91

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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.