Home / 1,942.07-2,913.96-1,109.10

Finding the Fourth Proportional to 1,942.07, 2,913.96 and 1,109.10

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Solution

The fourth proportional to 1,942.07, 2,913.96 and 1,109.10 is: 1,664.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.07 : 2,913.96 = 1,109.10 : x
  2. Step 2: Convert to fraction form
    1,942.07/2,913.96 = 1,109.10/x
  3. Step 3: Cross multiply
    1,942.07x = 2,913.96 × 1,109.10
  4. Step 4: Simplify right side
    1,942.07x = 3,231,873.04
  5. Step 5: Solve for x
    x = 3,231,873.04/1,942.07
  6. Step 6: Final answer
    x = 1,664.14

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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.