Home / 1,985.33-2,731.70-1,629.94

Finding the Fourth Proportional to 1,985.33, 2,731.70 and 1,629.94

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Solution

The fourth proportional to 1,985.33, 2,731.70 and 1,629.94 is: 2,242.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985.33 : 2,731.70 = 1,629.94 : x
  2. Step 2: Convert to fraction form
    1,985.33/2,731.70 = 1,629.94/x
  3. Step 3: Cross multiply
    1,985.33x = 2,731.70 × 1,629.94
  4. Step 4: Simplify right side
    1,985.33x = 4,452,507.10
  5. Step 5: Solve for x
    x = 4,452,507.10/1,985.33
  6. Step 6: Final answer
    x = 2,242.70

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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.