Home / 3,478.36-5,214.60-1,628.50

Finding the Fourth Proportional to 3,478.36, 5,214.60 and 1,628.50

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Solution

The fourth proportional to 3,478.36, 5,214.60 and 1,628.50 is: 2,441.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.36 : 5,214.60 = 1,628.50 : x
  2. Step 2: Convert to fraction form
    3,478.36/5,214.60 = 1,628.50/x
  3. Step 3: Cross multiply
    3,478.36x = 5,214.60 × 1,628.50
  4. Step 4: Simplify right side
    3,478.36x = 8,491,976.10
  5. Step 5: Solve for x
    x = 8,491,976.10/3,478.36
  6. Step 6: Final answer
    x = 2,441.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.