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Finding the Fourth Proportional to 2,184.25, 3,276.93 and 645.25

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Solution

The fourth proportional to 2,184.25, 3,276.93 and 645.25 is: 968.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.25 : 3,276.93 = 645.25 : x
  2. Step 2: Convert to fraction form
    2,184.25/3,276.93 = 645.25/x
  3. Step 3: Cross multiply
    2,184.25x = 3,276.93 × 645.25
  4. Step 4: Simplify right side
    2,184.25x = 2,114,439.08
  5. Step 5: Solve for x
    x = 2,114,439.08/2,184.25
  6. Step 6: Final answer
    x = 968.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.