Home / 5,188.29-7,160.09-2,830.43

Finding the Fourth Proportional to 5,188.29, 7,160.09 and 2,830.43

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Solution

The fourth proportional to 5,188.29, 7,160.09 and 2,830.43 is: 3,906.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.29 : 7,160.09 = 2,830.43 : x
  2. Step 2: Convert to fraction form
    5,188.29/7,160.09 = 2,830.43/x
  3. Step 3: Cross multiply
    5,188.29x = 7,160.09 × 2,830.43
  4. Step 4: Simplify right side
    5,188.29x = 20,266,137.29
  5. Step 5: Solve for x
    x = 20,266,137.29/5,188.29
  6. Step 6: Final answer
    x = 3,906.13

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1.5x scale

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.