Home / 2,570.40-3,847.32-1,791.36

Finding the Fourth Proportional to 2,570.40, 3,847.32 and 1,791.36

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Solution

The fourth proportional to 2,570.40, 3,847.32 and 1,791.36 is: 2,681.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,570.40 : 3,847.32 = 1,791.36 : x
  2. Step 2: Convert to fraction form
    2,570.40/3,847.32 = 1,791.36/x
  3. Step 3: Cross multiply
    2,570.40x = 3,847.32 × 1,791.36
  4. Step 4: Simplify right side
    2,570.40x = 6,891,935.16
  5. Step 5: Solve for x
    x = 6,891,935.16/2,570.40
  6. Step 6: Final answer
    x = 2,681.27

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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.