Home / 3,721.77-5,582.85-2,631

Finding the Fourth Proportional to 3,721.77, 5,582.85 and 2,631

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Solution

The fourth proportional to 3,721.77, 5,582.85 and 2,631 is: 3,946.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.77 : 5,582.85 = 2,631 : x
  2. Step 2: Convert to fraction form
    3,721.77/5,582.85 = 2,631/x
  3. Step 3: Cross multiply
    3,721.77x = 5,582.85 × 2,631
  4. Step 4: Simplify right side
    3,721.77x = 14,688,478.35
  5. Step 5: Solve for x
    x = 14,688,478.35/3,721.77
  6. Step 6: Final answer
    x = 3,946.64

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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.