Home / 3,891.30-5,837.55-1,293.63

Finding the Fourth Proportional to 3,891.30, 5,837.55 and 1,293.63

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Solution

The fourth proportional to 3,891.30, 5,837.55 and 1,293.63 is: 1,940.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.30 : 5,837.55 = 1,293.63 : x
  2. Step 2: Convert to fraction form
    3,891.30/5,837.55 = 1,293.63/x
  3. Step 3: Cross multiply
    3,891.30x = 5,837.55 × 1,293.63
  4. Step 4: Simplify right side
    3,891.30x = 7,551,629.81
  5. Step 5: Solve for x
    x = 7,551,629.81/3,891.30
  6. Step 6: Final answer
    x = 1,940.64

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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.