Home / 4,187.76-6,281.58-1,721.88

Finding the Fourth Proportional to 4,187.76, 6,281.58 and 1,721.88

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Solution

The fourth proportional to 4,187.76, 6,281.58 and 1,721.88 is: 2,582.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.76 : 6,281.58 = 1,721.88 : x
  2. Step 2: Convert to fraction form
    4,187.76/6,281.58 = 1,721.88/x
  3. Step 3: Cross multiply
    4,187.76x = 6,281.58 × 1,721.88
  4. Step 4: Simplify right side
    4,187.76x = 10,816,126.97
  5. Step 5: Solve for x
    x = 10,816,126.97/4,187.76
  6. Step 6: Final answer
    x = 2,582.80

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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.