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Finding the Fourth Proportional to 1,975.40, 2,964.11 and 880.55

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Solution

The fourth proportional to 1,975.40, 2,964.11 and 880.55 is: 1,321.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.40 : 2,964.11 = 880.55 : x
  2. Step 2: Convert to fraction form
    1,975.40/2,964.11 = 880.55/x
  3. Step 3: Cross multiply
    1,975.40x = 2,964.11 × 880.55
  4. Step 4: Simplify right side
    1,975.40x = 2,610,027.84
  5. Step 5: Solve for x
    x = 2,610,027.84/1,975.40
  6. Step 6: Final answer
    x = 1,321.27

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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.