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Finding the Fourth Proportional to 6,718.20, 10,077.60 and 2,560.20

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Solution

The fourth proportional to 6,718.20, 10,077.60 and 2,560.20 is: 3,840.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,718.20 : 10,077.60 = 2,560.20 : x
  2. Step 2: Convert to fraction form
    6,718.20/10,077.60 = 2,560.20/x
  3. Step 3: Cross multiply
    6,718.20x = 10,077.60 × 2,560.20
  4. Step 4: Simplify right side
    6,718.20x = 25,800,671.52
  5. Step 5: Solve for x
    x = 25,800,671.52/6,718.20
  6. Step 6: Final answer
    x = 3,840.41

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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.