Home / 3,467.90-4,785.37-1,975.78

Finding the Fourth Proportional to 3,467.90, 4,785.37 and 1,975.78

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Solution

The fourth proportional to 3,467.90, 4,785.37 and 1,975.78 is: 2,726.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,467.90 : 4,785.37 = 1,975.78 : x
  2. Step 2: Convert to fraction form
    3,467.90/4,785.37 = 1,975.78/x
  3. Step 3: Cross multiply
    3,467.90x = 4,785.37 × 1,975.78
  4. Step 4: Simplify right side
    3,467.90x = 9,454,812.46
  5. Step 5: Solve for x
    x = 9,454,812.46/3,467.90
  6. Step 6: Final answer
    x = 2,726.38

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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.