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Finding the Fourth Proportional to 7,809.02, 10,775.04 and 4,620.74

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Solution

The fourth proportional to 7,809.02, 10,775.04 and 4,620.74 is: 6,375.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.02 : 10,775.04 = 4,620.74 : x
  2. Step 2: Convert to fraction form
    7,809.02/10,775.04 = 4,620.74/x
  3. Step 3: Cross multiply
    7,809.02x = 10,775.04 × 4,620.74
  4. Step 4: Simplify right side
    7,809.02x = 49,788,658.33
  5. Step 5: Solve for x
    x = 49,788,658.33/7,809.02
  6. Step 6: Final answer
    x = 6,375.79

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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.