Home / 3,756.78-5,633.40-1,123.27

Finding the Fourth Proportional to 3,756.78, 5,633.40 and 1,123.27

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Solution

The fourth proportional to 3,756.78, 5,633.40 and 1,123.27 is: 1,684.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.78 : 5,633.40 = 1,123.27 : x
  2. Step 2: Convert to fraction form
    3,756.78/5,633.40 = 1,123.27/x
  3. Step 3: Cross multiply
    3,756.78x = 5,633.40 × 1,123.27
  4. Step 4: Simplify right side
    3,756.78x = 6,327,813.03
  5. Step 5: Solve for x
    x = 6,327,813.03/3,756.78
  6. Step 6: Final answer
    x = 1,684.37

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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.