Home / 1,971.44-2,979.56-1,937.44

Finding the Fourth Proportional to 1,971.44, 2,979.56 and 1,937.44

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Solution

The fourth proportional to 1,971.44, 2,979.56 and 1,937.44 is: 2,928.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.44 : 2,979.56 = 1,937.44 : x
  2. Step 2: Convert to fraction form
    1,971.44/2,979.56 = 1,937.44/x
  3. Step 3: Cross multiply
    1,971.44x = 2,979.56 × 1,937.44
  4. Step 4: Simplify right side
    1,971.44x = 5,772,718.73
  5. Step 5: Solve for x
    x = 5,772,718.73/1,971.44
  6. Step 6: Final answer
    x = 2,928.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.