Home / 5,217.92-7,201.41-2,980.23

Finding the Fourth Proportional to 5,217.92, 7,201.41 and 2,980.23

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Solution

The fourth proportional to 5,217.92, 7,201.41 and 2,980.23 is: 4,113.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.92 : 7,201.41 = 2,980.23 : x
  2. Step 2: Convert to fraction form
    5,217.92/7,201.41 = 2,980.23/x
  3. Step 3: Cross multiply
    5,217.92x = 7,201.41 × 2,980.23
  4. Step 4: Simplify right side
    5,217.92x = 21,461,819.94
  5. Step 5: Solve for x
    x = 21,461,819.94/5,217.92
  6. Step 6: Final answer
    x = 4,113.10

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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.