Home / 4,221.09-6,331.59-1,447.74

Finding the Fourth Proportional to 4,221.09, 6,331.59 and 1,447.74

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Solution

The fourth proportional to 4,221.09, 6,331.59 and 1,447.74 is: 2,171.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.09 : 6,331.59 = 1,447.74 : x
  2. Step 2: Convert to fraction form
    4,221.09/6,331.59 = 1,447.74/x
  3. Step 3: Cross multiply
    4,221.09x = 6,331.59 × 1,447.74
  4. Step 4: Simplify right side
    4,221.09x = 9,166,496.11
  5. Step 5: Solve for x
    x = 9,166,496.11/4,221.09
  6. Step 6: Final answer
    x = 2,171.59

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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.