Home / 3,618.95-5,429.20-1,153.98

Finding the Fourth Proportional to 3,618.95, 5,429.20 and 1,153.98

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Solution

The fourth proportional to 3,618.95, 5,429.20 and 1,153.98 is: 1,731.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.95 : 5,429.20 = 1,153.98 : x
  2. Step 2: Convert to fraction form
    3,618.95/5,429.20 = 1,153.98/x
  3. Step 3: Cross multiply
    3,618.95x = 5,429.20 × 1,153.98
  4. Step 4: Simplify right side
    3,618.95x = 6,265,185.33
  5. Step 5: Solve for x
    x = 6,265,185.33/3,618.95
  6. Step 6: Final answer
    x = 1,731.22

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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.