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Finding the Fourth Proportional to 2,425.84, 3,639.96 and 964.96

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Solution

The fourth proportional to 2,425.84, 3,639.96 and 964.96 is: 1,447.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,425.84 : 3,639.96 = 964.96 : x
  2. Step 2: Convert to fraction form
    2,425.84/3,639.96 = 964.96/x
  3. Step 3: Cross multiply
    2,425.84x = 3,639.96 × 964.96
  4. Step 4: Simplify right side
    2,425.84x = 3,512,415.80
  5. Step 5: Solve for x
    x = 3,512,415.80/2,425.84
  6. Step 6: Final answer
    x = 1,447.92

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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.