Home / 5,518.76-8,279.30-1,622.84

Finding the Fourth Proportional to 5,518.76, 8,279.30 and 1,622.84

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Solution

The fourth proportional to 5,518.76, 8,279.30 and 1,622.84 is: 2,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.76 : 8,279.30 = 1,622.84 : x
  2. Step 2: Convert to fraction form
    5,518.76/8,279.30 = 1,622.84/x
  3. Step 3: Cross multiply
    5,518.76x = 8,279.30 × 1,622.84
  4. Step 4: Simplify right side
    5,518.76x = 13,435,979.21
  5. Step 5: Solve for x
    x = 13,435,979.21/5,518.76
  6. Step 6: Final answer
    x = 2,434.60

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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.