Home / 4,100.40-5,659.27-2,421.69

Finding the Fourth Proportional to 4,100.40, 5,659.27 and 2,421.69

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Solution

The fourth proportional to 4,100.40, 5,659.27 and 2,421.69 is: 3,342.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,100.40 : 5,659.27 = 2,421.69 : x
  2. Step 2: Convert to fraction form
    4,100.40/5,659.27 = 2,421.69/x
  3. Step 3: Cross multiply
    4,100.40x = 5,659.27 × 2,421.69
  4. Step 4: Simplify right side
    4,100.40x = 13,704,997.57
  5. Step 5: Solve for x
    x = 13,704,997.57/4,100.40
  6. Step 6: Final answer
    x = 3,342.36

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Half 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.