Home / 3,221.70-4,444.93-1,805.19

Finding the Fourth Proportional to 3,221.70, 4,444.93 and 1,805.19

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Solution

The fourth proportional to 3,221.70, 4,444.93 and 1,805.19 is: 2,490.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.70 : 4,444.93 = 1,805.19 : x
  2. Step 2: Convert to fraction form
    3,221.70/4,444.93 = 1,805.19/x
  3. Step 3: Cross multiply
    3,221.70x = 4,444.93 × 1,805.19
  4. Step 4: Simplify right side
    3,221.70x = 8,023,943.19
  5. Step 5: Solve for x
    x = 8,023,943.19/3,221.70
  6. Step 6: Final answer
    x = 2,490.59

Related Problems

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.