Home / 2,897.08-3,997.94-1,620.94

Finding the Fourth Proportional to 2,897.08, 3,997.94 and 1,620.94

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Solution

The fourth proportional to 2,897.08, 3,997.94 and 1,620.94 is: 2,236.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.08 : 3,997.94 = 1,620.94 : x
  2. Step 2: Convert to fraction form
    2,897.08/3,997.94 = 1,620.94/x
  3. Step 3: Cross multiply
    2,897.08x = 3,997.94 × 1,620.94
  4. Step 4: Simplify right side
    2,897.08x = 6,480,402.76
  5. Step 5: Solve for x
    x = 6,480,402.76/2,897.08
  6. Step 6: Final answer
    x = 2,236.88

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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.