Home / 3,190.60-4,405.18-2,853.46

Finding the Fourth Proportional to 3,190.60, 4,405.18 and 2,853.46

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Solution

The fourth proportional to 3,190.60, 4,405.18 and 2,853.46 is: 3,939.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.60 : 4,405.18 = 2,853.46 : x
  2. Step 2: Convert to fraction form
    3,190.60/4,405.18 = 2,853.46/x
  3. Step 3: Cross multiply
    3,190.60x = 4,405.18 × 2,853.46
  4. Step 4: Simplify right side
    3,190.60x = 12,569,968.63
  5. Step 5: Solve for x
    x = 12,569,968.63/3,190.60
  6. Step 6: Final answer
    x = 3,939.69

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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.