Home / 4,220.63-6,331.68-1,447.59

Finding the Fourth Proportional to 4,220.63, 6,331.68 and 1,447.59

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Solution

The fourth proportional to 4,220.63, 6,331.68 and 1,447.59 is: 2,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.63 : 6,331.68 = 1,447.59 : x
  2. Step 2: Convert to fraction form
    4,220.63/6,331.68 = 1,447.59/x
  3. Step 3: Cross multiply
    4,220.63x = 6,331.68 × 1,447.59
  4. Step 4: Simplify right side
    4,220.63x = 9,165,676.65
  5. Step 5: Solve for x
    x = 9,165,676.65/4,220.63
  6. Step 6: Final answer
    x = 2,171.64

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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.