Home / 1,979.41-2,966.64-1,102.38

Finding the Fourth Proportional to 1,979.41, 2,966.64 and 1,102.38

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Solution

The fourth proportional to 1,979.41, 2,966.64 and 1,102.38 is: 1,652.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.41 : 2,966.64 = 1,102.38 : x
  2. Step 2: Convert to fraction form
    1,979.41/2,966.64 = 1,102.38/x
  3. Step 3: Cross multiply
    1,979.41x = 2,966.64 × 1,102.38
  4. Step 4: Simplify right side
    1,979.41x = 3,270,364.60
  5. Step 5: Solve for x
    x = 3,270,364.60/1,979.41
  6. Step 6: Final answer
    x = 1,652.19

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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.