Home / 2,492.09-3,438.97-1,429.11

Finding the Fourth Proportional to 2,492.09, 3,438.97 and 1,429.11

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Solution

The fourth proportional to 2,492.09, 3,438.97 and 1,429.11 is: 1,972.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,492.09 : 3,438.97 = 1,429.11 : x
  2. Step 2: Convert to fraction form
    2,492.09/3,438.97 = 1,429.11/x
  3. Step 3: Cross multiply
    2,492.09x = 3,438.97 × 1,429.11
  4. Step 4: Simplify right side
    2,492.09x = 4,914,666.42
  5. Step 5: Solve for x
    x = 4,914,666.42/2,492.09
  6. Step 6: Final answer
    x = 1,972.11

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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.