Home / 2,913.06-4,015.34-1,968.56

Finding the Fourth Proportional to 2,913.06, 4,015.34 and 1,968.56

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Solution

The fourth proportional to 2,913.06, 4,015.34 and 1,968.56 is: 2,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.06 : 4,015.34 = 1,968.56 : x
  2. Step 2: Convert to fraction form
    2,913.06/4,015.34 = 1,968.56/x
  3. Step 3: Cross multiply
    2,913.06x = 4,015.34 × 1,968.56
  4. Step 4: Simplify right side
    2,913.06x = 7,904,437.71
  5. Step 5: Solve for x
    x = 7,904,437.71/2,913.06
  6. Step 6: Final answer
    x = 2,713.45

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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.