Home / 3,101.23-4,279.67-1,684.89

Finding the Fourth Proportional to 3,101.23, 4,279.67 and 1,684.89

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Solution

The fourth proportional to 3,101.23, 4,279.67 and 1,684.89 is: 2,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.23 : 4,279.67 = 1,684.89 : x
  2. Step 2: Convert to fraction form
    3,101.23/4,279.67 = 1,684.89/x
  3. Step 3: Cross multiply
    3,101.23x = 4,279.67 × 1,684.89
  4. Step 4: Simplify right side
    3,101.23x = 7,210,773.19
  5. Step 5: Solve for x
    x = 7,210,773.19/3,101.23
  6. Step 6: Final answer
    x = 2,325.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.