Home / 3,116.45-4,677.79-2,239.98

Finding the Fourth Proportional to 3,116.45, 4,677.79 and 2,239.98

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Solution

The fourth proportional to 3,116.45, 4,677.79 and 2,239.98 is: 3,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.45 : 4,677.79 = 2,239.98 : x
  2. Step 2: Convert to fraction form
    3,116.45/4,677.79 = 2,239.98/x
  3. Step 3: Cross multiply
    3,116.45x = 4,677.79 × 2,239.98
  4. Step 4: Simplify right side
    3,116.45x = 10,478,121.46
  5. Step 5: Solve for x
    x = 10,478,121.46/3,116.45
  6. Step 6: Final answer
    x = 3,362.20

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1.5x scale

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.