Home / 6,880.88-10,315.56-2,775.92

Finding the Fourth Proportional to 6,880.88, 10,315.56 and 2,775.92

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Solution

The fourth proportional to 6,880.88, 10,315.56 and 2,775.92 is: 4,161.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.88 : 10,315.56 = 2,775.92 : x
  2. Step 2: Convert to fraction form
    6,880.88/10,315.56 = 2,775.92/x
  3. Step 3: Cross multiply
    6,880.88x = 10,315.56 × 2,775.92
  4. Step 4: Simplify right side
    6,880.88x = 28,635,169.32
  5. Step 5: Solve for x
    x = 28,635,169.32/6,880.88
  6. Step 6: Final answer
    x = 4,161.56

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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.