Home / 2,630.90-3,629.61-2,299.34

Finding the Fourth Proportional to 2,630.90, 3,629.61 and 2,299.34

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Solution

The fourth proportional to 2,630.90, 3,629.61 and 2,299.34 is: 3,172.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.90 : 3,629.61 = 2,299.34 : x
  2. Step 2: Convert to fraction form
    2,630.90/3,629.61 = 2,299.34/x
  3. Step 3: Cross multiply
    2,630.90x = 3,629.61 × 2,299.34
  4. Step 4: Simplify right side
    2,630.90x = 8,345,707.46
  5. Step 5: Solve for x
    x = 8,345,707.46/2,630.90
  6. Step 6: Final answer
    x = 3,172.19

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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.