Home / 3,664.40-5,495.39-1,689.22

Finding the Fourth Proportional to 3,664.40, 5,495.39 and 1,689.22

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Solution

The fourth proportional to 3,664.40, 5,495.39 and 1,689.22 is: 2,533.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.40 : 5,495.39 = 1,689.22 : x
  2. Step 2: Convert to fraction form
    3,664.40/5,495.39 = 1,689.22/x
  3. Step 3: Cross multiply
    3,664.40x = 5,495.39 × 1,689.22
  4. Step 4: Simplify right side
    3,664.40x = 9,282,886.77
  5. Step 5: Solve for x
    x = 9,282,886.77/3,664.40
  6. Step 6: Final answer
    x = 2,533.26

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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.