Home / 3,157.98-4,358.46-2,276.70

Finding the Fourth Proportional to 3,157.98, 4,358.46 and 2,276.70

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Solution

The fourth proportional to 3,157.98, 4,358.46 and 2,276.70 is: 3,142.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.98 : 4,358.46 = 2,276.70 : x
  2. Step 2: Convert to fraction form
    3,157.98/4,358.46 = 2,276.70/x
  3. Step 3: Cross multiply
    3,157.98x = 4,358.46 × 2,276.70
  4. Step 4: Simplify right side
    3,157.98x = 9,922,905.88
  5. Step 5: Solve for x
    x = 9,922,905.88/3,157.98
  6. Step 6: Final answer
    x = 3,142.17

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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.