Home / 3,126.16-4,685.86-1,663.84

Finding the Fourth Proportional to 3,126.16, 4,685.86 and 1,663.84

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Solution

The fourth proportional to 3,126.16, 4,685.86 and 1,663.84 is: 2,493.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.16 : 4,685.86 = 1,663.84 : x
  2. Step 2: Convert to fraction form
    3,126.16/4,685.86 = 1,663.84/x
  3. Step 3: Cross multiply
    3,126.16x = 4,685.86 × 1,663.84
  4. Step 4: Simplify right side
    3,126.16x = 7,796,521.30
  5. Step 5: Solve for x
    x = 7,796,521.30/3,126.16
  6. Step 6: Final answer
    x = 2,493.96

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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.