Home / 2,817.25-3,887.74-1,558.36

Finding the Fourth Proportional to 2,817.25, 3,887.74 and 1,558.36

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Solution

The fourth proportional to 2,817.25, 3,887.74 and 1,558.36 is: 2,150.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.25 : 3,887.74 = 1,558.36 : x
  2. Step 2: Convert to fraction form
    2,817.25/3,887.74 = 1,558.36/x
  3. Step 3: Cross multiply
    2,817.25x = 3,887.74 × 1,558.36
  4. Step 4: Simplify right side
    2,817.25x = 6,058,471.28
  5. Step 5: Solve for x
    x = 6,058,471.28/2,817.25
  6. Step 6: Final answer
    x = 2,150.49

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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.