Home / 6,719.91-9,271.38-3,886.26

Finding the Fourth Proportional to 6,719.91, 9,271.38 and 3,886.26

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Solution

The fourth proportional to 6,719.91, 9,271.38 and 3,886.26 is: 5,361.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,719.91 : 9,271.38 = 3,886.26 : x
  2. Step 2: Convert to fraction form
    6,719.91/9,271.38 = 3,886.26/x
  3. Step 3: Cross multiply
    6,719.91x = 9,271.38 × 3,886.26
  4. Step 4: Simplify right side
    6,719.91x = 36,030,993.24
  5. Step 5: Solve for x
    x = 36,030,993.24/6,719.91
  6. Step 6: Final answer
    x = 5,361.83

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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.