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Finding the Fourth Proportional to 3,007.80, 4,511.70 and 2,837.70

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Solution

The fourth proportional to 3,007.80, 4,511.70 and 2,837.70 is: 4,256.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.80 : 4,511.70 = 2,837.70 : x
  2. Step 2: Convert to fraction form
    3,007.80/4,511.70 = 2,837.70/x
  3. Step 3: Cross multiply
    3,007.80x = 4,511.70 × 2,837.70
  4. Step 4: Simplify right side
    3,007.80x = 12,802,851.09
  5. Step 5: Solve for x
    x = 12,802,851.09/3,007.80
  6. Step 6: Final answer
    x = 4,256.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.