Home / 3,791.09-5,685.48-1,325.45

Finding the Fourth Proportional to 3,791.09, 5,685.48 and 1,325.45

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Solution

The fourth proportional to 3,791.09, 5,685.48 and 1,325.45 is: 1,987.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.09 : 5,685.48 = 1,325.45 : x
  2. Step 2: Convert to fraction form
    3,791.09/5,685.48 = 1,325.45/x
  3. Step 3: Cross multiply
    3,791.09x = 5,685.48 × 1,325.45
  4. Step 4: Simplify right side
    3,791.09x = 7,535,791.04
  5. Step 5: Solve for x
    x = 7,535,791.04/3,791.09
  6. Step 6: Final answer
    x = 1,987.77

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1.5x scale

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.