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Finding the Fourth Proportional to 2,988.02, 4,476.54 and 1,505.54

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Solution

The fourth proportional to 2,988.02, 4,476.54 and 1,505.54 is: 2,255.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.02 : 4,476.54 = 1,505.54 : x
  2. Step 2: Convert to fraction form
    2,988.02/4,476.54 = 1,505.54/x
  3. Step 3: Cross multiply
    2,988.02x = 4,476.54 × 1,505.54
  4. Step 4: Simplify right side
    2,988.02x = 6,739,610.03
  5. Step 5: Solve for x
    x = 6,739,610.03/2,988.02
  6. Step 6: Final answer
    x = 2,255.54

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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.