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Finding the Fourth Proportional to 7,090.09, 10,628.17 and 2,644.49

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Solution

The fourth proportional to 7,090.09, 10,628.17 and 2,644.49 is: 3,964.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.09 : 10,628.17 = 2,644.49 : x
  2. Step 2: Convert to fraction form
    7,090.09/10,628.17 = 2,644.49/x
  3. Step 3: Cross multiply
    7,090.09x = 10,628.17 × 2,644.49
  4. Step 4: Simplify right side
    7,090.09x = 28,106,109.24
  5. Step 5: Solve for x
    x = 28,106,109.24/7,090.09
  6. Step 6: Final answer
    x = 3,964.14

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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.