Home / 3,424.53-5,139.03-3,145.70

Finding the Fourth Proportional to 3,424.53, 5,139.03 and 3,145.70

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Solution

The fourth proportional to 3,424.53, 5,139.03 and 3,145.70 is: 4,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,424.53 : 5,139.03 = 3,145.70 : x
  2. Step 2: Convert to fraction form
    3,424.53/5,139.03 = 3,145.70/x
  3. Step 3: Cross multiply
    3,424.53x = 5,139.03 × 3,145.70
  4. Step 4: Simplify right side
    3,424.53x = 16,165,846.67
  5. Step 5: Solve for x
    x = 16,165,846.67/3,424.53
  6. Step 6: Final answer
    x = 4,720.60

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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.