Home / 1,525.22-2,288.09-485.19

Finding the Fourth Proportional to 1,525.22, 2,288.09 and 485.19

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Solution

The fourth proportional to 1,525.22, 2,288.09 and 485.19 is: 727.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.22 : 2,288.09 = 485.19 : x
  2. Step 2: Convert to fraction form
    1,525.22/2,288.09 = 485.19/x
  3. Step 3: Cross multiply
    1,525.22x = 2,288.09 × 485.19
  4. Step 4: Simplify right side
    1,525.22x = 1,110,155.96
  5. Step 5: Solve for x
    x = 1,110,155.96/1,525.22
  6. Step 6: Final answer
    x = 727.87

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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.