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Finding the Fourth Proportional to 5,477.60, 8,215.60 and 2,703.56

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Solution

The fourth proportional to 5,477.60, 8,215.60 and 2,703.56 is: 4,054.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.60 : 8,215.60 = 2,703.56 : x
  2. Step 2: Convert to fraction form
    5,477.60/8,215.60 = 2,703.56/x
  3. Step 3: Cross multiply
    5,477.60x = 8,215.60 × 2,703.56
  4. Step 4: Simplify right side
    5,477.60x = 22,211,367.54
  5. Step 5: Solve for x
    x = 22,211,367.54/5,477.60
  6. Step 6: Final answer
    x = 4,054.95

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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.