Home / 2,816.43-3,886.56-1,637.42

Finding the Fourth Proportional to 2,816.43, 3,886.56 and 1,637.42

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Solution

The fourth proportional to 2,816.43, 3,886.56 and 1,637.42 is: 2,259.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.43 : 3,886.56 = 1,637.42 : x
  2. Step 2: Convert to fraction form
    2,816.43/3,886.56 = 1,637.42/x
  3. Step 3: Cross multiply
    2,816.43x = 3,886.56 × 1,637.42
  4. Step 4: Simplify right side
    2,816.43x = 6,363,911.64
  5. Step 5: Solve for x
    x = 6,363,911.64/2,816.43
  6. Step 6: Final answer
    x = 2,259.57

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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.