Home / 7,145.61-10,716.33-2,762.04

Finding the Fourth Proportional to 7,145.61, 10,716.33 and 2,762.04

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Solution

The fourth proportional to 7,145.61, 10,716.33 and 2,762.04 is: 4,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.61 : 10,716.33 = 2,762.04 : x
  2. Step 2: Convert to fraction form
    7,145.61/10,716.33 = 2,762.04/x
  3. Step 3: Cross multiply
    7,145.61x = 10,716.33 × 2,762.04
  4. Step 4: Simplify right side
    7,145.61x = 29,598,932.11
  5. Step 5: Solve for x
    x = 29,598,932.11/7,145.61
  6. Step 6: Final answer
    x = 4,142.25

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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.