Home / 5,208.40-7,187.52-2,850.40

Finding the Fourth Proportional to 5,208.40, 7,187.52 and 2,850.40

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Solution

The fourth proportional to 5,208.40, 7,187.52 and 2,850.40 is: 3,933.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.40 : 7,187.52 = 2,850.40 : x
  2. Step 2: Convert to fraction form
    5,208.40/7,187.52 = 2,850.40/x
  3. Step 3: Cross multiply
    5,208.40x = 7,187.52 × 2,850.40
  4. Step 4: Simplify right side
    5,208.40x = 20,487,307.01
  5. Step 5: Solve for x
    x = 20,487,307.01/5,208.40
  6. Step 6: Final answer
    x = 3,933.51

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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.