Home / 4,421.60-6,626.72-1,821.44

Finding the Fourth Proportional to 4,421.60, 6,626.72 and 1,821.44

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Solution

The fourth proportional to 4,421.60, 6,626.72 and 1,821.44 is: 2,729.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,421.60 : 6,626.72 = 1,821.44 : x
  2. Step 2: Convert to fraction form
    4,421.60/6,626.72 = 1,821.44/x
  3. Step 3: Cross multiply
    4,421.60x = 6,626.72 × 1,821.44
  4. Step 4: Simplify right side
    4,421.60x = 12,070,172.88
  5. Step 5: Solve for x
    x = 12,070,172.88/4,421.60
  6. Step 6: Final answer
    x = 2,729.82

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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.