Home / 3,299.25-4,551.31-1,972.60

Finding the Fourth Proportional to 3,299.25, 4,551.31 and 1,972.60

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Solution

The fourth proportional to 3,299.25, 4,551.31 and 1,972.60 is: 2,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,299.25 : 4,551.31 = 1,972.60 : x
  2. Step 2: Convert to fraction form
    3,299.25/4,551.31 = 1,972.60/x
  3. Step 3: Cross multiply
    3,299.25x = 4,551.31 × 1,972.60
  4. Step 4: Simplify right side
    3,299.25x = 8,977,904.24
  5. Step 5: Solve for x
    x = 8,977,904.24/3,299.25
  6. Step 6: Final answer
    x = 2,721.20

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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.