Home / 1,720.91-2,582.11-625.43

Finding the Fourth Proportional to 1,720.91, 2,582.11 and 625.43

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Solution

The fourth proportional to 1,720.91, 2,582.11 and 625.43 is: 938.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.91 : 2,582.11 = 625.43 : x
  2. Step 2: Convert to fraction form
    1,720.91/2,582.11 = 625.43/x
  3. Step 3: Cross multiply
    1,720.91x = 2,582.11 × 625.43
  4. Step 4: Simplify right side
    1,720.91x = 1,614,929.06
  5. Step 5: Solve for x
    x = 1,614,929.06/1,720.91
  6. Step 6: Final answer
    x = 938.42

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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.