Home / 3,120.89-4,307.26-1,794.57

Finding the Fourth Proportional to 3,120.89, 4,307.26 and 1,794.57

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Solution

The fourth proportional to 3,120.89, 4,307.26 and 1,794.57 is: 2,476.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.89 : 4,307.26 = 1,794.57 : x
  2. Step 2: Convert to fraction form
    3,120.89/4,307.26 = 1,794.57/x
  3. Step 3: Cross multiply
    3,120.89x = 4,307.26 × 1,794.57
  4. Step 4: Simplify right side
    3,120.89x = 7,729,679.58
  5. Step 5: Solve for x
    x = 7,729,679.58/3,120.89
  6. Step 6: Final answer
    x = 2,476.75

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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.