Home / 2,913.13-4,015.43-1,968.62

Finding the Fourth Proportional to 2,913.13, 4,015.43 and 1,968.62

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Solution

The fourth proportional to 2,913.13, 4,015.43 and 1,968.62 is: 2,713.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.13 : 4,015.43 = 1,968.62 : x
  2. Step 2: Convert to fraction form
    2,913.13/4,015.43 = 1,968.62/x
  3. Step 3: Cross multiply
    2,913.13x = 4,015.43 × 1,968.62
  4. Step 4: Simplify right side
    2,913.13x = 7,904,855.81
  5. Step 5: Solve for x
    x = 7,904,855.81/2,913.13
  6. Step 6: Final answer
    x = 2,713.53

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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.