Home / 3,160.70-4,364.52-1,983.80

Finding the Fourth Proportional to 3,160.70, 4,364.52 and 1,983.80

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Solution

The fourth proportional to 3,160.70, 4,364.52 and 1,983.80 is: 2,739.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.70 : 4,364.52 = 1,983.80 : x
  2. Step 2: Convert to fraction form
    3,160.70/4,364.52 = 1,983.80/x
  3. Step 3: Cross multiply
    3,160.70x = 4,364.52 × 1,983.80
  4. Step 4: Simplify right side
    3,160.70x = 8,658,334.78
  5. Step 5: Solve for x
    x = 8,658,334.78/3,160.70
  6. Step 6: Final answer
    x = 2,739.37

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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.