Home / 5,208.21-7,187.29-2,850.35

Finding the Fourth Proportional to 5,208.21, 7,187.29 and 2,850.35

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Solution

The fourth proportional to 5,208.21, 7,187.29 and 2,850.35 is: 3,933.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.21 : 7,187.29 = 2,850.35 : x
  2. Step 2: Convert to fraction form
    5,208.21/7,187.29 = 2,850.35/x
  3. Step 3: Cross multiply
    5,208.21x = 7,187.29 × 2,850.35
  4. Step 4: Simplify right side
    5,208.21x = 20,486,248.99
  5. Step 5: Solve for x
    x = 20,486,248.99/5,208.21
  6. Step 6: Final answer
    x = 3,933.45

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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.