Home / 6,731.79-9,290.75-4,079.25

Finding the Fourth Proportional to 6,731.79, 9,290.75 and 4,079.25

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Solution

The fourth proportional to 6,731.79, 9,290.75 and 4,079.25 is: 5,629.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,731.79 : 9,290.75 = 4,079.25 : x
  2. Step 2: Convert to fraction form
    6,731.79/9,290.75 = 4,079.25/x
  3. Step 3: Cross multiply
    6,731.79x = 9,290.75 × 4,079.25
  4. Step 4: Simplify right side
    6,731.79x = 37,899,271.54
  5. Step 5: Solve for x
    x = 37,899,271.54/6,731.79
  6. Step 6: Final answer
    x = 5,629.90

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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.