Home / 7,428.43-11,143.79-2,429.23

Finding the Fourth Proportional to 7,428.43, 11,143.79 and 2,429.23

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Solution

The fourth proportional to 7,428.43, 11,143.79 and 2,429.23 is: 3,644.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.43 : 11,143.79 = 2,429.23 : x
  2. Step 2: Convert to fraction form
    7,428.43/11,143.79 = 2,429.23/x
  3. Step 3: Cross multiply
    7,428.43x = 11,143.79 × 2,429.23
  4. Step 4: Simplify right side
    7,428.43x = 27,070,828.98
  5. Step 5: Solve for x
    x = 27,070,828.98/7,428.43
  6. Step 6: Final answer
    x = 3,644.22

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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.