Home / 3,819.84-5,270.77-3,487.69

Finding the Fourth Proportional to 3,819.84, 5,270.77 and 3,487.69

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Solution

The fourth proportional to 3,819.84, 5,270.77 and 3,487.69 is: 4,812.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.84 : 5,270.77 = 3,487.69 : x
  2. Step 2: Convert to fraction form
    3,819.84/5,270.77 = 3,487.69/x
  3. Step 3: Cross multiply
    3,819.84x = 5,270.77 × 3,487.69
  4. Step 4: Simplify right side
    3,819.84x = 18,382,822.77
  5. Step 5: Solve for x
    x = 18,382,822.77/3,819.84
  6. Step 6: Final answer
    x = 4,812.46

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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.