Home / 1,979-2,731.06-1,193.08

Finding the Fourth Proportional to 1,979, 2,731.06 and 1,193.08

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Solution

The fourth proportional to 1,979, 2,731.06 and 1,193.08 is: 1,646.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979 : 2,731.06 = 1,193.08 : x
  2. Step 2: Convert to fraction form
    1,979/2,731.06 = 1,193.08/x
  3. Step 3: Cross multiply
    1,979x = 2,731.06 × 1,193.08
  4. Step 4: Simplify right side
    1,979x = 3,258,373.06
  5. Step 5: Solve for x
    x = 3,258,373.06/1,979
  6. Step 6: Final answer
    x = 1,646.47

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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.