Home / 3,755.69-5,634.34-1,123.40

Finding the Fourth Proportional to 3,755.69, 5,634.34 and 1,123.40

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Solution

The fourth proportional to 3,755.69, 5,634.34 and 1,123.40 is: 1,685.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.69 : 5,634.34 = 1,123.40 : x
  2. Step 2: Convert to fraction form
    3,755.69/5,634.34 = 1,123.40/x
  3. Step 3: Cross multiply
    3,755.69x = 5,634.34 × 1,123.40
  4. Step 4: Simplify right side
    3,755.69x = 6,329,617.56
  5. Step 5: Solve for x
    x = 6,329,617.56/3,755.69
  6. Step 6: Final answer
    x = 1,685.34

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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.