Home / 2,817.40-3,887.67-1,558.37

Finding the Fourth Proportional to 2,817.40, 3,887.67 and 1,558.37

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Solution

The fourth proportional to 2,817.40, 3,887.67 and 1,558.37 is: 2,150.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.40 : 3,887.67 = 1,558.37 : x
  2. Step 2: Convert to fraction form
    2,817.40/3,887.67 = 1,558.37/x
  3. Step 3: Cross multiply
    2,817.40x = 3,887.67 × 1,558.37
  4. Step 4: Simplify right side
    2,817.40x = 6,058,428.30
  5. Step 5: Solve for x
    x = 6,058,428.30/2,817.40
  6. Step 6: Final answer
    x = 2,150.36

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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.