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Finding the Fourth Proportional to 5,304.88, 7,945.01 and 5,120.36

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Solution

The fourth proportional to 5,304.88, 7,945.01 and 5,120.36 is: 7,668.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,304.88 : 7,945.01 = 5,120.36 : x
  2. Step 2: Convert to fraction form
    5,304.88/7,945.01 = 5,120.36/x
  3. Step 3: Cross multiply
    5,304.88x = 7,945.01 × 5,120.36
  4. Step 4: Simplify right side
    5,304.88x = 40,681,311.40
  5. Step 5: Solve for x
    x = 40,681,311.40/5,304.88
  6. Step 6: Final answer
    x = 7,668.66

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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.