Home / 5,114.36-7,669.92-2,190.80

Finding the Fourth Proportional to 5,114.36, 7,669.92 and 2,190.80

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Solution

The fourth proportional to 5,114.36, 7,669.92 and 2,190.80 is: 3,285.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.36 : 7,669.92 = 2,190.80 : x
  2. Step 2: Convert to fraction form
    5,114.36/7,669.92 = 2,190.80/x
  3. Step 3: Cross multiply
    5,114.36x = 7,669.92 × 2,190.80
  4. Step 4: Simplify right side
    5,114.36x = 16,803,260.74
  5. Step 5: Solve for x
    x = 16,803,260.74/5,114.36
  6. Step 6: Final answer
    x = 3,285.51

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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.