Home / 4,440.60-6,655.74-3,189.78

Finding the Fourth Proportional to 4,440.60, 6,655.74 and 3,189.78

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Solution

The fourth proportional to 4,440.60, 6,655.74 and 3,189.78 is: 4,780.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,440.60 : 6,655.74 = 3,189.78 : x
  2. Step 2: Convert to fraction form
    4,440.60/6,655.74 = 3,189.78/x
  3. Step 3: Cross multiply
    4,440.60x = 6,655.74 × 3,189.78
  4. Step 4: Simplify right side
    4,440.60x = 21,230,346.34
  5. Step 5: Solve for x
    x = 21,230,346.34/4,440.60
  6. Step 6: Final answer
    x = 4,780.96

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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.