Home / 1,581.00-2,371.29-485.27

Finding the Fourth Proportional to 1,581.00, 2,371.29 and 485.27

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Solution

The fourth proportional to 1,581.00, 2,371.29 and 485.27 is: 727.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.00 : 2,371.29 = 485.27 : x
  2. Step 2: Convert to fraction form
    1,581.00/2,371.29 = 485.27/x
  3. Step 3: Cross multiply
    1,581.00x = 2,371.29 × 485.27
  4. Step 4: Simplify right side
    1,581.00x = 1,150,711.11
  5. Step 5: Solve for x
    x = 1,150,711.11/1,581.00
  6. Step 6: Final answer
    x = 727.84

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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.