Home / 3,123.12-4,684.08-1,174.68

Finding the Fourth Proportional to 3,123.12, 4,684.08 and 1,174.68

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Solution

The fourth proportional to 3,123.12, 4,684.08 and 1,174.68 is: 1,761.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.12 : 4,684.08 = 1,174.68 : x
  2. Step 2: Convert to fraction form
    3,123.12/4,684.08 = 1,174.68/x
  3. Step 3: Cross multiply
    3,123.12x = 4,684.08 × 1,174.68
  4. Step 4: Simplify right side
    3,123.12x = 5,502,295.09
  5. Step 5: Solve for x
    x = 5,502,295.09/3,123.12
  6. Step 6: Final answer
    x = 1,761.79

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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.