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Finding the Fourth Proportional to 2,706.21, 4,059.33 and 654.21

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Solution

The fourth proportional to 2,706.21, 4,059.33 and 654.21 is: 981.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,706.21 : 4,059.33 = 654.21 : x
  2. Step 2: Convert to fraction form
    2,706.21/4,059.33 = 654.21/x
  3. Step 3: Cross multiply
    2,706.21x = 4,059.33 × 654.21
  4. Step 4: Simplify right side
    2,706.21x = 2,655,654.28
  5. Step 5: Solve for x
    x = 2,655,654.28/2,706.21
  6. Step 6: Final answer
    x = 981.32

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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.