Home / 5,389.05-8,083.58-1,691.57

Finding the Fourth Proportional to 5,389.05, 8,083.58 and 1,691.57

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Solution

The fourth proportional to 5,389.05, 8,083.58 and 1,691.57 is: 2,537.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.05 : 8,083.58 = 1,691.57 : x
  2. Step 2: Convert to fraction form
    5,389.05/8,083.58 = 1,691.57/x
  3. Step 3: Cross multiply
    5,389.05x = 8,083.58 × 1,691.57
  4. Step 4: Simplify right side
    5,389.05x = 13,673,892.54
  5. Step 5: Solve for x
    x = 13,673,892.54/5,389.05
  6. Step 6: Final answer
    x = 2,537.35

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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.