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Finding the Fourth Proportional to 6,762.39, 10,145.18 and 2,145.39

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Solution

The fourth proportional to 6,762.39, 10,145.18 and 2,145.39 is: 3,218.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,762.39 : 10,145.18 = 2,145.39 : x
  2. Step 2: Convert to fraction form
    6,762.39/10,145.18 = 2,145.39/x
  3. Step 3: Cross multiply
    6,762.39x = 10,145.18 × 2,145.39
  4. Step 4: Simplify right side
    6,762.39x = 21,765,356.99
  5. Step 5: Solve for x
    x = 21,765,356.99/6,762.39
  6. Step 6: Final answer
    x = 3,218.59

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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.