Home / 4,221.28-6,327.60-2,030.40

Finding the Fourth Proportional to 4,221.28, 6,327.60 and 2,030.40

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Solution

The fourth proportional to 4,221.28, 6,327.60 and 2,030.40 is: 3,043.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.28 : 6,327.60 = 2,030.40 : x
  2. Step 2: Convert to fraction form
    4,221.28/6,327.60 = 2,030.40/x
  3. Step 3: Cross multiply
    4,221.28x = 6,327.60 × 2,030.40
  4. Step 4: Simplify right side
    4,221.28x = 12,847,559.04
  5. Step 5: Solve for x
    x = 12,847,559.04/4,221.28
  6. Step 6: Final answer
    x = 3,043.52

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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.