Home / 3,169.13-4,374-2,123.01

Finding the Fourth Proportional to 3,169.13, 4,374 and 2,123.01

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Solution

The fourth proportional to 3,169.13, 4,374 and 2,123.01 is: 2,930.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.13 : 4,374 = 2,123.01 : x
  2. Step 2: Convert to fraction form
    3,169.13/4,374 = 2,123.01/x
  3. Step 3: Cross multiply
    3,169.13x = 4,374 × 2,123.01
  4. Step 4: Simplify right side
    3,169.13x = 9,286,045.74
  5. Step 5: Solve for x
    x = 9,286,045.74/3,169.13
  6. Step 6: Final answer
    x = 2,930.16

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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.