Home / 1,525.43-2,105.26-1,276.31

Finding the Fourth Proportional to 1,525.43, 2,105.26 and 1,276.31

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Solution

The fourth proportional to 1,525.43, 2,105.26 and 1,276.31 is: 1,761.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.43 : 2,105.26 = 1,276.31 : x
  2. Step 2: Convert to fraction form
    1,525.43/2,105.26 = 1,276.31/x
  3. Step 3: Cross multiply
    1,525.43x = 2,105.26 × 1,276.31
  4. Step 4: Simplify right side
    1,525.43x = 2,686,950.67
  5. Step 5: Solve for x
    x = 2,686,950.67/1,525.43
  6. Step 6: Final answer
    x = 1,761.44

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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.