Home / 7,745.58-10,688.88-4,208.79

Finding the Fourth Proportional to 7,745.58, 10,688.88 and 4,208.79

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Solution

The fourth proportional to 7,745.58, 10,688.88 and 4,208.79 is: 5,808.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.58 : 10,688.88 = 4,208.79 : x
  2. Step 2: Convert to fraction form
    7,745.58/10,688.88 = 4,208.79/x
  3. Step 3: Cross multiply
    7,745.58x = 10,688.88 × 4,208.79
  4. Step 4: Simplify right side
    7,745.58x = 44,987,251.26
  5. Step 5: Solve for x
    x = 44,987,251.26/7,745.58
  6. Step 6: Final answer
    x = 5,808.12

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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.