Home / 1,979.03-2,966.73-1,815.01

Finding the Fourth Proportional to 1,979.03, 2,966.73 and 1,815.01

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Solution

The fourth proportional to 1,979.03, 2,966.73 and 1,815.01 is: 2,720.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.03 : 2,966.73 = 1,815.01 : x
  2. Step 2: Convert to fraction form
    1,979.03/2,966.73 = 1,815.01/x
  3. Step 3: Cross multiply
    1,979.03x = 2,966.73 × 1,815.01
  4. Step 4: Simplify right side
    1,979.03x = 5,384,630.39
  5. Step 5: Solve for x
    x = 5,384,630.39/1,979.03
  6. Step 6: Final answer
    x = 2,720.84

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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.