Home / 3,638.61-5,453.73-1,557.32

Finding the Fourth Proportional to 3,638.61, 5,453.73 and 1,557.32

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Solution

The fourth proportional to 3,638.61, 5,453.73 and 1,557.32 is: 2,334.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.61 : 5,453.73 = 1,557.32 : x
  2. Step 2: Convert to fraction form
    3,638.61/5,453.73 = 1,557.32/x
  3. Step 3: Cross multiply
    3,638.61x = 5,453.73 × 1,557.32
  4. Step 4: Simplify right side
    3,638.61x = 8,493,175.53
  5. Step 5: Solve for x
    x = 8,493,175.53/3,638.61
  6. Step 6: Final answer
    x = 2,334.18

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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.