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Finding the Fourth Proportional to 2,770.48, 3,823.28 and 1,528.48

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Solution

The fourth proportional to 2,770.48, 3,823.28 and 1,528.48 is: 2,109.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.48 : 3,823.28 = 1,528.48 : x
  2. Step 2: Convert to fraction form
    2,770.48/3,823.28 = 1,528.48/x
  3. Step 3: Cross multiply
    2,770.48x = 3,823.28 × 1,528.48
  4. Step 4: Simplify right side
    2,770.48x = 5,843,807.01
  5. Step 5: Solve for x
    x = 5,843,807.01/2,770.48
  6. Step 6: Final answer
    x = 2,109.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.