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Finding the Fourth Proportional to 7,620.80, 10,504.16 and 5,102.04

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Solution

The fourth proportional to 7,620.80, 10,504.16 and 5,102.04 is: 7,032.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.80 : 10,504.16 = 5,102.04 : x
  2. Step 2: Convert to fraction form
    7,620.80/10,504.16 = 5,102.04/x
  3. Step 3: Cross multiply
    7,620.80x = 10,504.16 × 5,102.04
  4. Step 4: Simplify right side
    7,620.80x = 53,592,644.49
  5. Step 5: Solve for x
    x = 53,592,644.49/7,620.80
  6. Step 6: Final answer
    x = 7,032.42

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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.