Home / 3,486.39-4,813.47-2,161.50

Finding the Fourth Proportional to 3,486.39, 4,813.47 and 2,161.50

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Solution

The fourth proportional to 3,486.39, 4,813.47 and 2,161.50 is: 2,984.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.39 : 4,813.47 = 2,161.50 : x
  2. Step 2: Convert to fraction form
    3,486.39/4,813.47 = 2,161.50/x
  3. Step 3: Cross multiply
    3,486.39x = 4,813.47 × 2,161.50
  4. Step 4: Simplify right side
    3,486.39x = 10,404,315.41
  5. Step 5: Solve for x
    x = 10,404,315.41/3,486.39
  6. Step 6: Final answer
    x = 2,984.27

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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.