Home / 1,729.31-2,595.33-756.09

Finding the Fourth Proportional to 1,729.31, 2,595.33 and 756.09

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Solution

The fourth proportional to 1,729.31, 2,595.33 and 756.09 is: 1,134.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.31 : 2,595.33 = 756.09 : x
  2. Step 2: Convert to fraction form
    1,729.31/2,595.33 = 756.09/x
  3. Step 3: Cross multiply
    1,729.31x = 2,595.33 × 756.09
  4. Step 4: Simplify right side
    1,729.31x = 1,962,303.06
  5. Step 5: Solve for x
    x = 1,962,303.06/1,729.31
  6. Step 6: Final answer
    x = 1,134.74

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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.