Home / 4,591.20-6,886.80-2,647.20

Finding the Fourth Proportional to 4,591.20, 6,886.80 and 2,647.20

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Solution

The fourth proportional to 4,591.20, 6,886.80 and 2,647.20 is: 3,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,591.20 : 6,886.80 = 2,647.20 : x
  2. Step 2: Convert to fraction form
    4,591.20/6,886.80 = 2,647.20/x
  3. Step 3: Cross multiply
    4,591.20x = 6,886.80 × 2,647.20
  4. Step 4: Simplify right side
    4,591.20x = 18,230,736.96
  5. Step 5: Solve for x
    x = 18,230,736.96/4,591.20
  6. Step 6: Final answer
    x = 3,970.80

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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.