Home / 3,128.85-4,319.61-2,336.54

Finding the Fourth Proportional to 3,128.85, 4,319.61 and 2,336.54

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Solution

The fourth proportional to 3,128.85, 4,319.61 and 2,336.54 is: 3,225.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.85 : 4,319.61 = 2,336.54 : x
  2. Step 2: Convert to fraction form
    3,128.85/4,319.61 = 2,336.54/x
  3. Step 3: Cross multiply
    3,128.85x = 4,319.61 × 2,336.54
  4. Step 4: Simplify right side
    3,128.85x = 10,092,952.35
  5. Step 5: Solve for x
    x = 10,092,952.35/3,128.85
  6. Step 6: Final answer
    x = 3,225.77

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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.