Home / 5,919.15-8,171.38-3,681.74

Finding the Fourth Proportional to 5,919.15, 8,171.38 and 3,681.74

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Solution

The fourth proportional to 5,919.15, 8,171.38 and 3,681.74 is: 5,082.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.15 : 8,171.38 = 3,681.74 : x
  2. Step 2: Convert to fraction form
    5,919.15/8,171.38 = 3,681.74/x
  3. Step 3: Cross multiply
    5,919.15x = 8,171.38 × 3,681.74
  4. Step 4: Simplify right side
    5,919.15x = 30,084,896.60
  5. Step 5: Solve for x
    x = 30,084,896.60/5,919.15
  6. Step 6: Final answer
    x = 5,082.64

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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.