Home / 2,815.88-3,885.93-1,637.01

Finding the Fourth Proportional to 2,815.88, 3,885.93 and 1,637.01

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Solution

The fourth proportional to 2,815.88, 3,885.93 and 1,637.01 is: 2,259.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.88 : 3,885.93 = 1,637.01 : x
  2. Step 2: Convert to fraction form
    2,815.88/3,885.93 = 1,637.01/x
  3. Step 3: Cross multiply
    2,815.88x = 3,885.93 × 1,637.01
  4. Step 4: Simplify right side
    2,815.88x = 6,361,306.27
  5. Step 5: Solve for x
    x = 6,361,306.27/2,815.88
  6. Step 6: Final answer
    x = 2,259.09

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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.