Home / 3,677.40-5,516.28-1,485

Finding the Fourth Proportional to 3,677.40, 5,516.28 and 1,485

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Solution

The fourth proportional to 3,677.40, 5,516.28 and 1,485 is: 2,227.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.40 : 5,516.28 = 1,485 : x
  2. Step 2: Convert to fraction form
    3,677.40/5,516.28 = 1,485/x
  3. Step 3: Cross multiply
    3,677.40x = 5,516.28 × 1,485
  4. Step 4: Simplify right side
    3,677.40x = 8,191,675.80
  5. Step 5: Solve for x
    x = 8,191,675.80/3,677.40
  6. Step 6: Final answer
    x = 2,227.57

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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.