Home / 3,640.29-5,460.98-1,331.25

Finding the Fourth Proportional to 3,640.29, 5,460.98 and 1,331.25

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Solution

The fourth proportional to 3,640.29, 5,460.98 and 1,331.25 is: 1,997.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.29 : 5,460.98 = 1,331.25 : x
  2. Step 2: Convert to fraction form
    3,640.29/5,460.98 = 1,331.25/x
  3. Step 3: Cross multiply
    3,640.29x = 5,460.98 × 1,331.25
  4. Step 4: Simplify right side
    3,640.29x = 7,269,922.97
  5. Step 5: Solve for x
    x = 7,269,922.97/3,640.29
  6. Step 6: Final answer
    x = 1,997.07

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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.