Home / 1,579.21-2,369.19-713.51

Finding the Fourth Proportional to 1,579.21, 2,369.19 and 713.51

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Solution

The fourth proportional to 1,579.21, 2,369.19 and 713.51 is: 1,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.21 : 2,369.19 = 713.51 : x
  2. Step 2: Convert to fraction form
    1,579.21/2,369.19 = 713.51/x
  3. Step 3: Cross multiply
    1,579.21x = 2,369.19 × 713.51
  4. Step 4: Simplify right side
    1,579.21x = 1,690,440.76
  5. Step 5: Solve for x
    x = 1,690,440.76/1,579.21
  6. Step 6: Final answer
    x = 1,070.43

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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.