Home / 3,376.79-4,649.20-2,956.70

Finding the Fourth Proportional to 3,376.79, 4,649.20 and 2,956.70

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Solution

The fourth proportional to 3,376.79, 4,649.20 and 2,956.70 is: 4,070.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,376.79 : 4,649.20 = 2,956.70 : x
  2. Step 2: Convert to fraction form
    3,376.79/4,649.20 = 2,956.70/x
  3. Step 3: Cross multiply
    3,376.79x = 4,649.20 × 2,956.70
  4. Step 4: Simplify right side
    3,376.79x = 13,746,293.87
  5. Step 5: Solve for x
    x = 13,746,293.87/3,376.79
  6. Step 6: Final answer
    x = 4,070.82

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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.