Home / 3,297.98-4,551.29-1,971.20

Finding the Fourth Proportional to 3,297.98, 4,551.29 and 1,971.20

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Solution

The fourth proportional to 3,297.98, 4,551.29 and 1,971.20 is: 2,720.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,297.98 : 4,551.29 = 1,971.20 : x
  2. Step 2: Convert to fraction form
    3,297.98/4,551.29 = 1,971.20/x
  3. Step 3: Cross multiply
    3,297.98x = 4,551.29 × 1,971.20
  4. Step 4: Simplify right side
    3,297.98x = 8,971,511.76
  5. Step 5: Solve for x
    x = 8,971,511.76/3,297.98
  6. Step 6: Final answer
    x = 2,720.30

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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.