Home / 1,528.21-2,109.27-1,265.77

Finding the Fourth Proportional to 1,528.21, 2,109.27 and 1,265.77

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Solution

The fourth proportional to 1,528.21, 2,109.27 and 1,265.77 is: 1,747.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.21 : 2,109.27 = 1,265.77 : x
  2. Step 2: Convert to fraction form
    1,528.21/2,109.27 = 1,265.77/x
  3. Step 3: Cross multiply
    1,528.21x = 2,109.27 × 1,265.77
  4. Step 4: Simplify right side
    1,528.21x = 2,669,850.69
  5. Step 5: Solve for x
    x = 2,669,850.69/1,528.21
  6. Step 6: Final answer
    x = 1,747.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.