Home / 2,943.68-4,061.46-1,948.64

Finding the Fourth Proportional to 2,943.68, 4,061.46 and 1,948.64

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Solution

The fourth proportional to 2,943.68, 4,061.46 and 1,948.64 is: 2,688.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.68 : 4,061.46 = 1,948.64 : x
  2. Step 2: Convert to fraction form
    2,943.68/4,061.46 = 1,948.64/x
  3. Step 3: Cross multiply
    2,943.68x = 4,061.46 × 1,948.64
  4. Step 4: Simplify right side
    2,943.68x = 7,914,323.41
  5. Step 5: Solve for x
    x = 7,914,323.41/2,943.68
  6. Step 6: Final answer
    x = 2,688.58

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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.