Home / 1,753.20-2,629.77-713.19

Finding the Fourth Proportional to 1,753.20, 2,629.77 and 713.19

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Solution

The fourth proportional to 1,753.20, 2,629.77 and 713.19 is: 1,069.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.20 : 2,629.77 = 713.19 : x
  2. Step 2: Convert to fraction form
    1,753.20/2,629.77 = 713.19/x
  3. Step 3: Cross multiply
    1,753.20x = 2,629.77 × 713.19
  4. Step 4: Simplify right side
    1,753.20x = 1,875,525.67
  5. Step 5: Solve for x
    x = 1,875,525.67/1,753.20
  6. Step 6: Final answer
    x = 1,069.77

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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.