Home / 3,120.40-4,306.98-1,794.25

Finding the Fourth Proportional to 3,120.40, 4,306.98 and 1,794.25

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Solution

The fourth proportional to 3,120.40, 4,306.98 and 1,794.25 is: 2,476.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.40 : 4,306.98 = 1,794.25 : x
  2. Step 2: Convert to fraction form
    3,120.40/4,306.98 = 1,794.25/x
  3. Step 3: Cross multiply
    3,120.40x = 4,306.98 × 1,794.25
  4. Step 4: Simplify right side
    3,120.40x = 7,727,798.87
  5. Step 5: Solve for x
    x = 7,727,798.87/3,120.40
  6. Step 6: Final answer
    x = 2,476.54

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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.