Home / 1,971.17-2,700.90-1,942.01

Finding the Fourth Proportional to 1,971.17, 2,700.90 and 1,942.01

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Solution

The fourth proportional to 1,971.17, 2,700.90 and 1,942.01 is: 2,660.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.17 : 2,700.90 = 1,942.01 : x
  2. Step 2: Convert to fraction form
    1,971.17/2,700.90 = 1,942.01/x
  3. Step 3: Cross multiply
    1,971.17x = 2,700.90 × 1,942.01
  4. Step 4: Simplify right side
    1,971.17x = 5,245,174.81
  5. Step 5: Solve for x
    x = 5,245,174.81/1,971.17
  6. Step 6: Final answer
    x = 2,660.94

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.