Home / 3,791.86-5,232.69-2,113.20

Finding the Fourth Proportional to 3,791.86, 5,232.69 and 2,113.20

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Solution

The fourth proportional to 3,791.86, 5,232.69 and 2,113.20 is: 2,916.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.86 : 5,232.69 = 2,113.20 : x
  2. Step 2: Convert to fraction form
    3,791.86/5,232.69 = 2,113.20/x
  3. Step 3: Cross multiply
    3,791.86x = 5,232.69 × 2,113.20
  4. Step 4: Simplify right side
    3,791.86x = 11,057,720.51
  5. Step 5: Solve for x
    x = 11,057,720.51/3,791.86
  6. Step 6: Final answer
    x = 2,916.18

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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.