Home / 5,389.48-8,072.70-3,436.84

Finding the Fourth Proportional to 5,389.48, 8,072.70 and 3,436.84

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Solution

The fourth proportional to 5,389.48, 8,072.70 and 3,436.84 is: 5,147.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.48 : 8,072.70 = 3,436.84 : x
  2. Step 2: Convert to fraction form
    5,389.48/8,072.70 = 3,436.84/x
  3. Step 3: Cross multiply
    5,389.48x = 8,072.70 × 3,436.84
  4. Step 4: Simplify right side
    5,389.48x = 27,744,578.27
  5. Step 5: Solve for x
    x = 27,744,578.27/5,389.48
  6. Step 6: Final answer
    x = 5,147.91

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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.