Home / 2,883.81-3,979.65-1,557.51

Finding the Fourth Proportional to 2,883.81, 3,979.65 and 1,557.51

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Solution

The fourth proportional to 2,883.81, 3,979.65 and 1,557.51 is: 2,149.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,883.81 : 3,979.65 = 1,557.51 : x
  2. Step 2: Convert to fraction form
    2,883.81/3,979.65 = 1,557.51/x
  3. Step 3: Cross multiply
    2,883.81x = 3,979.65 × 1,557.51
  4. Step 4: Simplify right side
    2,883.81x = 6,198,349.03
  5. Step 5: Solve for x
    x = 6,198,349.03/2,883.81
  6. Step 6: Final answer
    x = 2,149.36

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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.