Home / 2,897.14-3,997.83-1,638.31

Finding the Fourth Proportional to 2,897.14, 3,997.83 and 1,638.31

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Solution

The fourth proportional to 2,897.14, 3,997.83 and 1,638.31 is: 2,260.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.14 : 3,997.83 = 1,638.31 : x
  2. Step 2: Convert to fraction form
    2,897.14/3,997.83 = 1,638.31/x
  3. Step 3: Cross multiply
    2,897.14x = 3,997.83 × 1,638.31
  4. Step 4: Simplify right side
    2,897.14x = 6,549,699.76
  5. Step 5: Solve for x
    x = 6,549,699.76/2,897.14
  6. Step 6: Final answer
    x = 2,260.75

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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.