Home / 2,127.13-3,188.33-1,605.44

Finding the Fourth Proportional to 2,127.13, 3,188.33 and 1,605.44

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Solution

The fourth proportional to 2,127.13, 3,188.33 and 1,605.44 is: 2,406.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.13 : 3,188.33 = 1,605.44 : x
  2. Step 2: Convert to fraction form
    2,127.13/3,188.33 = 1,605.44/x
  3. Step 3: Cross multiply
    2,127.13x = 3,188.33 × 1,605.44
  4. Step 4: Simplify right side
    2,127.13x = 5,118,660.54
  5. Step 5: Solve for x
    x = 5,118,660.54/2,127.13
  6. Step 6: Final answer
    x = 2,406.37

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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.