Home / 5,518.68-8,283.48-4,490.78

Finding the Fourth Proportional to 5,518.68, 8,283.48 and 4,490.78

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Solution

The fourth proportional to 5,518.68, 8,283.48 and 4,490.78 is: 6,740.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.68 : 8,283.48 = 4,490.78 : x
  2. Step 2: Convert to fraction form
    5,518.68/8,283.48 = 4,490.78/x
  3. Step 3: Cross multiply
    5,518.68x = 8,283.48 × 4,490.78
  4. Step 4: Simplify right side
    5,518.68x = 37,199,286.31
  5. Step 5: Solve for x
    x = 37,199,286.31/5,518.68
  6. Step 6: Final answer
    x = 6,740.61

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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.