Home / 3,772.41-5,210.94-3,145.02

Finding the Fourth Proportional to 3,772.41, 5,210.94 and 3,145.02

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Solution

The fourth proportional to 3,772.41, 5,210.94 and 3,145.02 is: 4,344.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.41 : 5,210.94 = 3,145.02 : x
  2. Step 2: Convert to fraction form
    3,772.41/5,210.94 = 3,145.02/x
  3. Step 3: Cross multiply
    3,772.41x = 5,210.94 × 3,145.02
  4. Step 4: Simplify right side
    3,772.41x = 16,388,510.52
  5. Step 5: Solve for x
    x = 16,388,510.52/3,772.41
  6. Step 6: Final answer
    x = 4,344.31

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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.