Home / 2,817.61-3,887.96-1,622.27

Finding the Fourth Proportional to 2,817.61, 3,887.96 and 1,622.27

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Solution

The fourth proportional to 2,817.61, 3,887.96 and 1,622.27 is: 2,238.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.61 : 3,887.96 = 1,622.27 : x
  2. Step 2: Convert to fraction form
    2,817.61/3,887.96 = 1,622.27/x
  3. Step 3: Cross multiply
    2,817.61x = 3,887.96 × 1,622.27
  4. Step 4: Simplify right side
    2,817.61x = 6,307,322.48
  5. Step 5: Solve for x
    x = 6,307,322.48/2,817.61
  6. Step 6: Final answer
    x = 2,238.54

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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.