Home / 3,664.59-5,054.85-2,405.72

Finding the Fourth Proportional to 3,664.59, 5,054.85 and 2,405.72

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Solution

The fourth proportional to 3,664.59, 5,054.85 and 2,405.72 is: 3,318.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.59 : 5,054.85 = 2,405.72 : x
  2. Step 2: Convert to fraction form
    3,664.59/5,054.85 = 2,405.72/x
  3. Step 3: Cross multiply
    3,664.59x = 5,054.85 × 2,405.72
  4. Step 4: Simplify right side
    3,664.59x = 12,160,528.47
  5. Step 5: Solve for x
    x = 12,160,528.47/3,664.59
  6. Step 6: Final answer
    x = 3,318.39

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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.