Home / 2,815.59-4,221.63-1,083.81

Finding the Fourth Proportional to 2,815.59, 4,221.63 and 1,083.81

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Solution

The fourth proportional to 2,815.59, 4,221.63 and 1,083.81 is: 1,625.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.59 : 4,221.63 = 1,083.81 : x
  2. Step 2: Convert to fraction form
    2,815.59/4,221.63 = 1,083.81/x
  3. Step 3: Cross multiply
    2,815.59x = 4,221.63 × 1,083.81
  4. Step 4: Simplify right side
    2,815.59x = 4,575,444.81
  5. Step 5: Solve for x
    x = 4,575,444.81/2,815.59
  6. Step 6: Final answer
    x = 1,625.04

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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.