Home / 3,070.60-4,238.36-2,913.88

Finding the Fourth Proportional to 3,070.60, 4,238.36 and 2,913.88

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Solution

The fourth proportional to 3,070.60, 4,238.36 and 2,913.88 is: 4,022.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.60 : 4,238.36 = 2,913.88 : x
  2. Step 2: Convert to fraction form
    3,070.60/4,238.36 = 2,913.88/x
  3. Step 3: Cross multiply
    3,070.60x = 4,238.36 × 2,913.88
  4. Step 4: Simplify right side
    3,070.60x = 12,350,072.44
  5. Step 5: Solve for x
    x = 12,350,072.44/3,070.60
  6. Step 6: Final answer
    x = 4,022.04

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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.