Home / 4,189.82-5,783.91-2,421.08

Finding the Fourth Proportional to 4,189.82, 5,783.91 and 2,421.08

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Solution

The fourth proportional to 4,189.82, 5,783.91 and 2,421.08 is: 3,342.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.82 : 5,783.91 = 2,421.08 : x
  2. Step 2: Convert to fraction form
    4,189.82/5,783.91 = 2,421.08/x
  3. Step 3: Cross multiply
    4,189.82x = 5,783.91 × 2,421.08
  4. Step 4: Simplify right side
    4,189.82x = 14,003,279.90
  5. Step 5: Solve for x
    x = 14,003,279.90/4,189.82
  6. Step 6: Final answer
    x = 3,342.22

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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.