Home / 5,919.02-8,171.21-3,681.62

Finding the Fourth Proportional to 5,919.02, 8,171.21 and 3,681.62

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Solution

The fourth proportional to 5,919.02, 8,171.21 and 3,681.62 is: 5,082.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.02 : 8,171.21 = 3,681.62 : x
  2. Step 2: Convert to fraction form
    5,919.02/8,171.21 = 3,681.62/x
  3. Step 3: Cross multiply
    5,919.02x = 8,171.21 × 3,681.62
  4. Step 4: Simplify right side
    5,919.02x = 30,083,271.75
  5. Step 5: Solve for x
    x = 30,083,271.75/5,919.02
  6. Step 6: Final answer
    x = 5,082.48

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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.