Home / 3,721.63-5,582.31-1,124.50

Finding the Fourth Proportional to 3,721.63, 5,582.31 and 1,124.50

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Solution

The fourth proportional to 3,721.63, 5,582.31 and 1,124.50 is: 1,686.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.63 : 5,582.31 = 1,124.50 : x
  2. Step 2: Convert to fraction form
    3,721.63/5,582.31 = 1,124.50/x
  3. Step 3: Cross multiply
    3,721.63x = 5,582.31 × 1,124.50
  4. Step 4: Simplify right side
    3,721.63x = 6,277,307.60
  5. Step 5: Solve for x
    x = 6,277,307.60/3,721.63
  6. Step 6: Final answer
    x = 1,686.71

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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.