Home / 1,721.72-2,582.60-1,358.44

Finding the Fourth Proportional to 1,721.72, 2,582.60 and 1,358.44

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Solution

The fourth proportional to 1,721.72, 2,582.60 and 1,358.44 is: 2,037.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.72 : 2,582.60 = 1,358.44 : x
  2. Step 2: Convert to fraction form
    1,721.72/2,582.60 = 1,358.44/x
  3. Step 3: Cross multiply
    1,721.72x = 2,582.60 × 1,358.44
  4. Step 4: Simplify right side
    1,721.72x = 3,508,307.14
  5. Step 5: Solve for x
    x = 3,508,307.14/1,721.72
  6. Step 6: Final answer
    x = 2,037.68

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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.