Home / 2,972.21-4,101.87-1,646.03

Finding the Fourth Proportional to 2,972.21, 4,101.87 and 1,646.03

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Solution

The fourth proportional to 2,972.21, 4,101.87 and 1,646.03 is: 2,271.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.21 : 4,101.87 = 1,646.03 : x
  2. Step 2: Convert to fraction form
    2,972.21/4,101.87 = 1,646.03/x
  3. Step 3: Cross multiply
    2,972.21x = 4,101.87 × 1,646.03
  4. Step 4: Simplify right side
    2,972.21x = 6,751,817.50
  5. Step 5: Solve for x
    x = 6,751,817.50/2,972.21
  6. Step 6: Final answer
    x = 2,271.65

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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.