Home / 1,987.04-2,734.08-1,936.16

Finding the Fourth Proportional to 1,987.04, 2,734.08 and 1,936.16

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Solution

The fourth proportional to 1,987.04, 2,734.08 and 1,936.16 is: 2,664.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987.04 : 2,734.08 = 1,936.16 : x
  2. Step 2: Convert to fraction form
    1,987.04/2,734.08 = 1,936.16/x
  3. Step 3: Cross multiply
    1,987.04x = 2,734.08 × 1,936.16
  4. Step 4: Simplify right side
    1,987.04x = 5,293,616.33
  5. Step 5: Solve for x
    x = 5,293,616.33/1,987.04
  6. Step 6: Final answer
    x = 2,664.07

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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.