Home / 2,913.19-4,015.51-1,968.68

Finding the Fourth Proportional to 2,913.19, 4,015.51 and 1,968.68

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Solution

The fourth proportional to 2,913.19, 4,015.51 and 1,968.68 is: 2,713.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.19 : 4,015.51 = 1,968.68 : x
  2. Step 2: Convert to fraction form
    2,913.19/4,015.51 = 1,968.68/x
  3. Step 3: Cross multiply
    2,913.19x = 4,015.51 × 1,968.68
  4. Step 4: Simplify right side
    2,913.19x = 7,905,254.23
  5. Step 5: Solve for x
    x = 7,905,254.23/2,913.19
  6. Step 6: Final answer
    x = 2,713.61

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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.