Home / 3,000.39-4,518.38-2,511.47

Finding the Fourth Proportional to 3,000.39, 4,518.38 and 2,511.47

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Solution

The fourth proportional to 3,000.39, 4,518.38 and 2,511.47 is: 3,782.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000.39 : 4,518.38 = 2,511.47 : x
  2. Step 2: Convert to fraction form
    3,000.39/4,518.38 = 2,511.47/x
  3. Step 3: Cross multiply
    3,000.39x = 4,518.38 × 2,511.47
  4. Step 4: Simplify right side
    3,000.39x = 11,347,740.67
  5. Step 5: Solve for x
    x = 11,347,740.67/3,000.39
  6. Step 6: Final answer
    x = 3,782.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.