Home / 1,995.10-2,999.13-1,985.38

Finding the Fourth Proportional to 1,995.10, 2,999.13 and 1,985.38

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Solution

The fourth proportional to 1,995.10, 2,999.13 and 1,985.38 is: 2,984.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.10 : 2,999.13 = 1,985.38 : x
  2. Step 2: Convert to fraction form
    1,995.10/2,999.13 = 1,985.38/x
  3. Step 3: Cross multiply
    1,995.10x = 2,999.13 × 1,985.38
  4. Step 4: Simplify right side
    1,995.10x = 5,954,412.72
  5. Step 5: Solve for x
    x = 5,954,412.72/1,995.10
  6. Step 6: Final answer
    x = 2,984.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.