Home / 2,123.13-3,184.80-1,135.54

Finding the Fourth Proportional to 2,123.13, 3,184.80 and 1,135.54

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Solution

The fourth proportional to 2,123.13, 3,184.80 and 1,135.54 is: 1,703.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,123.13 : 3,184.80 = 1,135.54 : x
  2. Step 2: Convert to fraction form
    2,123.13/3,184.80 = 1,135.54/x
  3. Step 3: Cross multiply
    2,123.13x = 3,184.80 × 1,135.54
  4. Step 4: Simplify right side
    2,123.13x = 3,616,467.79
  5. Step 5: Solve for x
    x = 3,616,467.79/2,123.13
  6. Step 6: Final answer
    x = 1,703.37

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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.