Home / 3,677.70-5,516.42-1,212.45

Finding the Fourth Proportional to 3,677.70, 5,516.42 and 1,212.45

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Solution

The fourth proportional to 3,677.70, 5,516.42 and 1,212.45 is: 1,818.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.70 : 5,516.42 = 1,212.45 : x
  2. Step 2: Convert to fraction form
    3,677.70/5,516.42 = 1,212.45/x
  3. Step 3: Cross multiply
    3,677.70x = 5,516.42 × 1,212.45
  4. Step 4: Simplify right side
    3,677.70x = 6,688,377.37
  5. Step 5: Solve for x
    x = 6,688,377.37/3,677.70
  6. Step 6: Final answer
    x = 1,818.63

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1.5x scale

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.