Home / 2,022.65-2,791.14-1,138.40

Finding the Fourth Proportional to 2,022.65, 2,791.14 and 1,138.40

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Solution

The fourth proportional to 2,022.65, 2,791.14 and 1,138.40 is: 1,570.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.65 : 2,791.14 = 1,138.40 : x
  2. Step 2: Convert to fraction form
    2,022.65/2,791.14 = 1,138.40/x
  3. Step 3: Cross multiply
    2,022.65x = 2,791.14 × 1,138.40
  4. Step 4: Simplify right side
    2,022.65x = 3,177,433.78
  5. Step 5: Solve for x
    x = 3,177,433.78/2,022.65
  6. Step 6: Final answer
    x = 1,570.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.