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Finding the Fourth Proportional to 3,653.72, 5,038.44 and 2,988.44

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Solution

The fourth proportional to 3,653.72, 5,038.44 and 2,988.44 is: 4,121.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.72 : 5,038.44 = 2,988.44 : x
  2. Step 2: Convert to fraction form
    3,653.72/5,038.44 = 2,988.44/x
  3. Step 3: Cross multiply
    3,653.72x = 5,038.44 × 2,988.44
  4. Step 4: Simplify right side
    3,653.72x = 15,057,075.63
  5. Step 5: Solve for x
    x = 15,057,075.63/3,653.72
  6. Step 6: Final answer
    x = 4,121.03

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1.5x scale

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.