Home / 4,419.48-6,628.92-3,189.12

Finding the Fourth Proportional to 4,419.48, 6,628.92 and 3,189.12

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Solution

The fourth proportional to 4,419.48, 6,628.92 and 3,189.12 is: 4,783.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,419.48 : 6,628.92 = 3,189.12 : x
  2. Step 2: Convert to fraction form
    4,419.48/6,628.92 = 3,189.12/x
  3. Step 3: Cross multiply
    4,419.48x = 6,628.92 × 3,189.12
  4. Step 4: Simplify right side
    4,419.48x = 21,140,421.35
  5. Step 5: Solve for x
    x = 21,140,421.35/4,419.48
  6. Step 6: Final answer
    x = 4,783.46

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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.