Home / 3,470.43-5,212.80-3,320.72

Finding the Fourth Proportional to 3,470.43, 5,212.80 and 3,320.72

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Solution

The fourth proportional to 3,470.43, 5,212.80 and 3,320.72 is: 4,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.43 : 5,212.80 = 3,320.72 : x
  2. Step 2: Convert to fraction form
    3,470.43/5,212.80 = 3,320.72/x
  3. Step 3: Cross multiply
    3,470.43x = 5,212.80 × 3,320.72
  4. Step 4: Simplify right side
    3,470.43x = 17,310,249.22
  5. Step 5: Solve for x
    x = 17,310,249.22/3,470.43
  6. Step 6: Final answer
    x = 4,987.93

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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.