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Finding the Fourth Proportional to 2,636.84, 3,955.21 and 1,527.91

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Solution

The fourth proportional to 2,636.84, 3,955.21 and 1,527.91 is: 2,291.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.84 : 3,955.21 = 1,527.91 : x
  2. Step 2: Convert to fraction form
    2,636.84/3,955.21 = 1,527.91/x
  3. Step 3: Cross multiply
    2,636.84x = 3,955.21 × 1,527.91
  4. Step 4: Simplify right side
    2,636.84x = 6,043,204.91
  5. Step 5: Solve for x
    x = 6,043,204.91/2,636.84
  6. Step 6: Final answer
    x = 2,291.84

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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.