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Finding the Fourth Proportional to 7,644.80, 10,550.80 and 4,501.28

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Solution

The fourth proportional to 7,644.80, 10,550.80 and 4,501.28 is: 6,212.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,644.80 : 10,550.80 = 4,501.28 : x
  2. Step 2: Convert to fraction form
    7,644.80/10,550.80 = 4,501.28/x
  3. Step 3: Cross multiply
    7,644.80x = 10,550.80 × 4,501.28
  4. Step 4: Simplify right side
    7,644.80x = 47,492,105.02
  5. Step 5: Solve for x
    x = 47,492,105.02/7,644.80
  6. Step 6: Final answer
    x = 6,212.34

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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.