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Finding the Fourth Proportional to 2,841.84, 4,253.28 and 2,087.28

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Solution

The fourth proportional to 2,841.84, 4,253.28 and 2,087.28 is: 3,123.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.84 : 4,253.28 = 2,087.28 : x
  2. Step 2: Convert to fraction form
    2,841.84/4,253.28 = 2,087.28/x
  3. Step 3: Cross multiply
    2,841.84x = 4,253.28 × 2,087.28
  4. Step 4: Simplify right side
    2,841.84x = 8,877,786.28
  5. Step 5: Solve for x
    x = 8,877,786.28/2,841.84
  6. Step 6: Final answer
    x = 3,123.96

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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.