Home / 3,297.90-4,551.10-1,971.60

Finding the Fourth Proportional to 3,297.90, 4,551.10 and 1,971.60

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Solution

The fourth proportional to 3,297.90, 4,551.10 and 1,971.60 is: 2,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,297.90 : 4,551.10 = 1,971.60 : x
  2. Step 2: Convert to fraction form
    3,297.90/4,551.10 = 1,971.60/x
  3. Step 3: Cross multiply
    3,297.90x = 4,551.10 × 1,971.60
  4. Step 4: Simplify right side
    3,297.90x = 8,972,948.76
  5. Step 5: Solve for x
    x = 8,972,948.76/3,297.90
  6. Step 6: Final answer
    x = 2,720.81

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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.