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Finding the Fourth Proportional to 2,628.81, 3,943.60 and 963.01

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Solution

The fourth proportional to 2,628.81, 3,943.60 and 963.01 is: 1,444.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.81 : 3,943.60 = 963.01 : x
  2. Step 2: Convert to fraction form
    2,628.81/3,943.60 = 963.01/x
  3. Step 3: Cross multiply
    2,628.81x = 3,943.60 × 963.01
  4. Step 4: Simplify right side
    2,628.81x = 3,797,726.24
  5. Step 5: Solve for x
    x = 3,797,726.24/2,628.81
  6. Step 6: Final answer
    x = 1,444.66

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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.