Home / 3,120.45-4,306.32-1,794.48

Finding the Fourth Proportional to 3,120.45, 4,306.32 and 1,794.48

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Solution

The fourth proportional to 3,120.45, 4,306.32 and 1,794.48 is: 2,476.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.45 : 4,306.32 = 1,794.48 : x
  2. Step 2: Convert to fraction form
    3,120.45/4,306.32 = 1,794.48/x
  3. Step 3: Cross multiply
    3,120.45x = 4,306.32 × 1,794.48
  4. Step 4: Simplify right side
    3,120.45x = 7,727,605.11
  5. Step 5: Solve for x
    x = 7,727,605.11/3,120.45
  6. Step 6: Final answer
    x = 2,476.44

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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.