Home / 3,529.47-5,290.64-2,214.15

Finding the Fourth Proportional to 3,529.47, 5,290.64 and 2,214.15

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Solution

The fourth proportional to 3,529.47, 5,290.64 and 2,214.15 is: 3,318.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.47 : 5,290.64 = 2,214.15 : x
  2. Step 2: Convert to fraction form
    3,529.47/5,290.64 = 2,214.15/x
  3. Step 3: Cross multiply
    3,529.47x = 5,290.64 × 2,214.15
  4. Step 4: Simplify right side
    3,529.47x = 11,714,259.49
  5. Step 5: Solve for x
    x = 11,714,259.49/3,529.47
  6. Step 6: Final answer
    x = 3,318.99

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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.