Home / 7,076.07-10,615.82-2,145.42

Finding the Fourth Proportional to 7,076.07, 10,615.82 and 2,145.42

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Solution

The fourth proportional to 7,076.07, 10,615.82 and 2,145.42 is: 3,218.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,076.07 : 10,615.82 = 2,145.42 : x
  2. Step 2: Convert to fraction form
    7,076.07/10,615.82 = 2,145.42/x
  3. Step 3: Cross multiply
    7,076.07x = 10,615.82 × 2,145.42
  4. Step 4: Simplify right side
    7,076.07x = 22,775,381.82
  5. Step 5: Solve for x
    x = 22,775,381.82/7,076.07
  6. Step 6: Final answer
    x = 3,218.65

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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.