Home / 3,721.71-5,582.39-1,124.57

Finding the Fourth Proportional to 3,721.71, 5,582.39 and 1,124.57

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Solution

The fourth proportional to 3,721.71, 5,582.39 and 1,124.57 is: 1,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.71 : 5,582.39 = 1,124.57 : x
  2. Step 2: Convert to fraction form
    3,721.71/5,582.39 = 1,124.57/x
  3. Step 3: Cross multiply
    3,721.71x = 5,582.39 × 1,124.57
  4. Step 4: Simplify right side
    3,721.71x = 6,277,788.32
  5. Step 5: Solve for x
    x = 6,277,788.32/3,721.71
  6. Step 6: Final answer
    x = 1,686.80

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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.