Home / 3,791.56-5,237.40-2,918.32

Finding the Fourth Proportional to 3,791.56, 5,237.40 and 2,918.32

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Solution

The fourth proportional to 3,791.56, 5,237.40 and 2,918.32 is: 4,031.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.56 : 5,237.40 = 2,918.32 : x
  2. Step 2: Convert to fraction form
    3,791.56/5,237.40 = 2,918.32/x
  3. Step 3: Cross multiply
    3,791.56x = 5,237.40 × 2,918.32
  4. Step 4: Simplify right side
    3,791.56x = 15,284,409.17
  5. Step 5: Solve for x
    x = 15,284,409.17/3,791.56
  6. Step 6: Final answer
    x = 4,031.17

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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.