Home / 1,728.24-2,593.65-1,267.21

Finding the Fourth Proportional to 1,728.24, 2,593.65 and 1,267.21

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Solution

The fourth proportional to 1,728.24, 2,593.65 and 1,267.21 is: 1,901.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728.24 : 2,593.65 = 1,267.21 : x
  2. Step 2: Convert to fraction form
    1,728.24/2,593.65 = 1,267.21/x
  3. Step 3: Cross multiply
    1,728.24x = 2,593.65 × 1,267.21
  4. Step 4: Simplify right side
    1,728.24x = 3,286,707.21
  5. Step 5: Solve for x
    x = 3,286,707.21/1,728.24
  6. Step 6: Final answer
    x = 1,901.77

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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.