Home / 1,942.18-2,911.14-1,210.75

Finding the Fourth Proportional to 1,942.18, 2,911.14 and 1,210.75

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Solution

The fourth proportional to 1,942.18, 2,911.14 and 1,210.75 is: 1,814.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.18 : 2,911.14 = 1,210.75 : x
  2. Step 2: Convert to fraction form
    1,942.18/2,911.14 = 1,210.75/x
  3. Step 3: Cross multiply
    1,942.18x = 2,911.14 × 1,210.75
  4. Step 4: Simplify right side
    1,942.18x = 3,524,655.48
  5. Step 5: Solve for x
    x = 3,524,655.48/1,942.18
  6. Step 6: Final answer
    x = 1,814.80

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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.