Home / 3,511.34-4,850.63-2,807.85

Finding the Fourth Proportional to 3,511.34, 4,850.63 and 2,807.85

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Solution

The fourth proportional to 3,511.34, 4,850.63 and 2,807.85 is: 3,878.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.34 : 4,850.63 = 2,807.85 : x
  2. Step 2: Convert to fraction form
    3,511.34/4,850.63 = 2,807.85/x
  3. Step 3: Cross multiply
    3,511.34x = 4,850.63 × 2,807.85
  4. Step 4: Simplify right side
    3,511.34x = 13,619,827.41
  5. Step 5: Solve for x
    x = 13,619,827.41/3,511.34
  6. Step 6: Final answer
    x = 3,878.82

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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.