Home / 2,817.08-3,887.22-1,637.72

Finding the Fourth Proportional to 2,817.08, 3,887.22 and 1,637.72

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Solution

The fourth proportional to 2,817.08, 3,887.22 and 1,637.72 is: 2,259.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.08 : 3,887.22 = 1,637.72 : x
  2. Step 2: Convert to fraction form
    2,817.08/3,887.22 = 1,637.72/x
  3. Step 3: Cross multiply
    2,817.08x = 3,887.22 × 1,637.72
  4. Step 4: Simplify right side
    2,817.08x = 6,366,177.94
  5. Step 5: Solve for x
    x = 6,366,177.94/2,817.08
  6. Step 6: Final answer
    x = 2,259.85

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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.