Home / 5,920.81-8,170.41-3,268.06

Finding the Fourth Proportional to 5,920.81, 8,170.41 and 3,268.06

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Solution

The fourth proportional to 5,920.81, 8,170.41 and 3,268.06 is: 4,509.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.81 : 8,170.41 = 3,268.06 : x
  2. Step 2: Convert to fraction form
    5,920.81/8,170.41 = 3,268.06/x
  3. Step 3: Cross multiply
    5,920.81x = 8,170.41 × 3,268.06
  4. Step 4: Simplify right side
    5,920.81x = 26,701,390.10
  5. Step 5: Solve for x
    x = 26,701,390.10/5,920.81
  6. Step 6: Final answer
    x = 4,509.75

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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.