Home / 3,513.26-4,847.86-2,187.39

Finding the Fourth Proportional to 3,513.26, 4,847.86 and 2,187.39

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Solution

The fourth proportional to 3,513.26, 4,847.86 and 2,187.39 is: 3,018.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.26 : 4,847.86 = 2,187.39 : x
  2. Step 2: Convert to fraction form
    3,513.26/4,847.86 = 2,187.39/x
  3. Step 3: Cross multiply
    3,513.26x = 4,847.86 × 2,187.39
  4. Step 4: Simplify right side
    3,513.26x = 10,604,160.49
  5. Step 5: Solve for x
    x = 10,604,160.49/3,513.26
  6. Step 6: Final answer
    x = 3,018.32

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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.