Home / 5,118.58-7,690.02-3,274.21

Finding the Fourth Proportional to 5,118.58, 7,690.02 and 3,274.21

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Solution

The fourth proportional to 5,118.58, 7,690.02 and 3,274.21 is: 4,919.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.58 : 7,690.02 = 3,274.21 : x
  2. Step 2: Convert to fraction form
    5,118.58/7,690.02 = 3,274.21/x
  3. Step 3: Cross multiply
    5,118.58x = 7,690.02 × 3,274.21
  4. Step 4: Simplify right side
    5,118.58x = 25,178,740.38
  5. Step 5: Solve for x
    x = 25,178,740.38/5,118.58
  6. Step 6: Final answer
    x = 4,919.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.