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Finding the Fourth Proportional to 3,390.77, 5,063.07 and 2,992.13

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Solution

The fourth proportional to 3,390.77, 5,063.07 and 2,992.13 is: 4,467.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.77 : 5,063.07 = 2,992.13 : x
  2. Step 2: Convert to fraction form
    3,390.77/5,063.07 = 2,992.13/x
  3. Step 3: Cross multiply
    3,390.77x = 5,063.07 × 2,992.13
  4. Step 4: Simplify right side
    3,390.77x = 15,149,363.64
  5. Step 5: Solve for x
    x = 15,149,363.64/3,390.77
  6. Step 6: Final answer
    x = 4,467.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.