Home / 3,478.82-4,798.26-2,153.12

Finding the Fourth Proportional to 3,478.82, 4,798.26 and 2,153.12

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Solution

The fourth proportional to 3,478.82, 4,798.26 and 2,153.12 is: 2,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.82 : 4,798.26 = 2,153.12 : x
  2. Step 2: Convert to fraction form
    3,478.82/4,798.26 = 2,153.12/x
  3. Step 3: Cross multiply
    3,478.82x = 4,798.26 × 2,153.12
  4. Step 4: Simplify right side
    3,478.82x = 10,331,205.58
  5. Step 5: Solve for x
    x = 10,331,205.58/3,478.82
  6. Step 6: Final answer
    x = 2,969.75

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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.