Home / 1,928.13-2,892.38-541.49

Finding the Fourth Proportional to 1,928.13, 2,892.38 and 541.49

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Solution

The fourth proportional to 1,928.13, 2,892.38 and 541.49 is: 812.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.13 : 2,892.38 = 541.49 : x
  2. Step 2: Convert to fraction form
    1,928.13/2,892.38 = 541.49/x
  3. Step 3: Cross multiply
    1,928.13x = 2,892.38 × 541.49
  4. Step 4: Simplify right side
    1,928.13x = 1,566,182.25
  5. Step 5: Solve for x
    x = 1,566,182.25/1,928.13
  6. Step 6: Final answer
    x = 812.28

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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.