Home / 3,047.84-4,206.13-1,721.69

Finding the Fourth Proportional to 3,047.84, 4,206.13 and 1,721.69

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Solution

The fourth proportional to 3,047.84, 4,206.13 and 1,721.69 is: 2,375.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.84 : 4,206.13 = 1,721.69 : x
  2. Step 2: Convert to fraction form
    3,047.84/4,206.13 = 1,721.69/x
  3. Step 3: Cross multiply
    3,047.84x = 4,206.13 × 1,721.69
  4. Step 4: Simplify right side
    3,047.84x = 7,241,626.62
  5. Step 5: Solve for x
    x = 7,241,626.62/3,047.84
  6. Step 6: Final answer
    x = 2,375.99

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1.5x scale

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.