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Finding the Fourth Proportional to 7,900.88, 10,902.28 and 4,756.56

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Solution

The fourth proportional to 7,900.88, 10,902.28 and 4,756.56 is: 6,563.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.88 : 10,902.28 = 4,756.56 : x
  2. Step 2: Convert to fraction form
    7,900.88/10,902.28 = 4,756.56/x
  3. Step 3: Cross multiply
    7,900.88x = 10,902.28 × 4,756.56
  4. Step 4: Simplify right side
    7,900.88x = 51,857,348.96
  5. Step 5: Solve for x
    x = 51,857,348.96/7,900.88
  6. Step 6: Final answer
    x = 6,563.49

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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.