Home / 1,948.51-2,685.30-1,912.97

Finding the Fourth Proportional to 1,948.51, 2,685.30 and 1,912.97

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Solution

The fourth proportional to 1,948.51, 2,685.30 and 1,912.97 is: 2,636.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.51 : 2,685.30 = 1,912.97 : x
  2. Step 2: Convert to fraction form
    1,948.51/2,685.30 = 1,912.97/x
  3. Step 3: Cross multiply
    1,948.51x = 2,685.30 × 1,912.97
  4. Step 4: Simplify right side
    1,948.51x = 5,136,893.54
  5. Step 5: Solve for x
    x = 5,136,893.54/1,948.51
  6. Step 6: Final answer
    x = 2,636.32

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1.5x scale

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.