Home / 5,087.70-7,018.11-3,669.80

Finding the Fourth Proportional to 5,087.70, 7,018.11 and 3,669.80

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Solution

The fourth proportional to 5,087.70, 7,018.11 and 3,669.80 is: 5,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.70 : 7,018.11 = 3,669.80 : x
  2. Step 2: Convert to fraction form
    5,087.70/7,018.11 = 3,669.80/x
  3. Step 3: Cross multiply
    5,087.70x = 7,018.11 × 3,669.80
  4. Step 4: Simplify right side
    5,087.70x = 25,755,024.99
  5. Step 5: Solve for x
    x = 25,755,024.99/5,087.70
  6. Step 6: Final answer
    x = 5,062.21

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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.