Home / 3,943.72-5,915.64-1,995.52

Finding the Fourth Proportional to 3,943.72, 5,915.64 and 1,995.52

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Solution

The fourth proportional to 3,943.72, 5,915.64 and 1,995.52 is: 2,993.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.72 : 5,915.64 = 1,995.52 : x
  2. Step 2: Convert to fraction form
    3,943.72/5,915.64 = 1,995.52/x
  3. Step 3: Cross multiply
    3,943.72x = 5,915.64 × 1,995.52
  4. Step 4: Simplify right side
    3,943.72x = 11,804,777.93
  5. Step 5: Solve for x
    x = 11,804,777.93/3,943.72
  6. Step 6: Final answer
    x = 2,993.31

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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.