Home / 2,817.36-3,887.94-1,558.43

Finding the Fourth Proportional to 2,817.36, 3,887.94 and 1,558.43

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Solution

The fourth proportional to 2,817.36, 3,887.94 and 1,558.43 is: 2,150.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.36 : 3,887.94 = 1,558.43 : x
  2. Step 2: Convert to fraction form
    2,817.36/3,887.94 = 1,558.43/x
  3. Step 3: Cross multiply
    2,817.36x = 3,887.94 × 1,558.43
  4. Step 4: Simplify right side
    2,817.36x = 6,059,062.89
  5. Step 5: Solve for x
    x = 6,059,062.89/2,817.36
  6. Step 6: Final answer
    x = 2,150.62

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1.5x scale

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.