Home / 7,076.88-10,615.32-2,919.24

Finding the Fourth Proportional to 7,076.88, 10,615.32 and 2,919.24

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Solution

The fourth proportional to 7,076.88, 10,615.32 and 2,919.24 is: 4,378.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,076.88 : 10,615.32 = 2,919.24 : x
  2. Step 2: Convert to fraction form
    7,076.88/10,615.32 = 2,919.24/x
  3. Step 3: Cross multiply
    7,076.88x = 10,615.32 × 2,919.24
  4. Step 4: Simplify right side
    7,076.88x = 30,988,666.76
  5. Step 5: Solve for x
    x = 30,988,666.76/7,076.88
  6. Step 6: Final answer
    x = 4,378.86

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Similar ratio
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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.