Home / 6,862.88-10,288.56-2,761.76

Finding the Fourth Proportional to 6,862.88, 10,288.56 and 2,761.76

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Solution

The fourth proportional to 6,862.88, 10,288.56 and 2,761.76 is: 4,140.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862.88 : 10,288.56 = 2,761.76 : x
  2. Step 2: Convert to fraction form
    6,862.88/10,288.56 = 2,761.76/x
  3. Step 3: Cross multiply
    6,862.88x = 10,288.56 × 2,761.76
  4. Step 4: Simplify right side
    6,862.88x = 28,414,533.47
  5. Step 5: Solve for x
    x = 28,414,533.47/6,862.88
  6. Step 6: Final answer
    x = 4,140.32

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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.