Home / 2,210.49-3,316.41-749.79

Finding the Fourth Proportional to 2,210.49, 3,316.41 and 749.79

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Solution

The fourth proportional to 2,210.49, 3,316.41 and 749.79 is: 1,124.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.49 : 3,316.41 = 749.79 : x
  2. Step 2: Convert to fraction form
    2,210.49/3,316.41 = 749.79/x
  3. Step 3: Cross multiply
    2,210.49x = 3,316.41 × 749.79
  4. Step 4: Simplify right side
    2,210.49x = 2,486,611.05
  5. Step 5: Solve for x
    x = 2,486,611.05/2,210.49
  6. Step 6: Final answer
    x = 1,124.91

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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.