Home / 3,898.60-5,381.54-2,326.12

Finding the Fourth Proportional to 3,898.60, 5,381.54 and 2,326.12

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Solution

The fourth proportional to 3,898.60, 5,381.54 and 2,326.12 is: 3,210.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.60 : 5,381.54 = 2,326.12 : x
  2. Step 2: Convert to fraction form
    3,898.60/5,381.54 = 2,326.12/x
  3. Step 3: Cross multiply
    3,898.60x = 5,381.54 × 2,326.12
  4. Step 4: Simplify right side
    3,898.60x = 12,518,107.82
  5. Step 5: Solve for x
    x = 12,518,107.82/3,898.60
  6. Step 6: Final answer
    x = 3,210.92

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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.