Home / 3,047.84-4,206.15-1,721.54

Finding the Fourth Proportional to 3,047.84, 4,206.15 and 1,721.54

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Solution

The fourth proportional to 3,047.84, 4,206.15 and 1,721.54 is: 2,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.84 : 4,206.15 = 1,721.54 : x
  2. Step 2: Convert to fraction form
    3,047.84/4,206.15 = 1,721.54/x
  3. Step 3: Cross multiply
    3,047.84x = 4,206.15 × 1,721.54
  4. Step 4: Simplify right side
    3,047.84x = 7,241,055.47
  5. Step 5: Solve for x
    x = 7,241,055.47/3,047.84
  6. Step 6: Final answer
    x = 2,375.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.