Home / 4,188.72-6,283.06-1,721.80

Finding the Fourth Proportional to 4,188.72, 6,283.06 and 1,721.80

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Solution

The fourth proportional to 4,188.72, 6,283.06 and 1,721.80 is: 2,582.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.72 : 6,283.06 = 1,721.80 : x
  2. Step 2: Convert to fraction form
    4,188.72/6,283.06 = 1,721.80/x
  3. Step 3: Cross multiply
    4,188.72x = 6,283.06 × 1,721.80
  4. Step 4: Simplify right side
    4,188.72x = 10,818,172.71
  5. Step 5: Solve for x
    x = 10,818,172.71/4,188.72
  6. Step 6: Final answer
    x = 2,582.69

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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.