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Finding the Fourth Proportional to 6,614.03, 9,907.82 and 3,980.08

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Solution

The fourth proportional to 6,614.03, 9,907.82 and 3,980.08 is: 5,962.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,614.03 : 9,907.82 = 3,980.08 : x
  2. Step 2: Convert to fraction form
    6,614.03/9,907.82 = 3,980.08/x
  3. Step 3: Cross multiply
    6,614.03x = 9,907.82 × 3,980.08
  4. Step 4: Simplify right side
    6,614.03x = 39,433,846.79
  5. Step 5: Solve for x
    x = 39,433,846.79/6,614.03
  6. Step 6: Final answer
    x = 5,962.15

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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.