Home / 7,485.78-10,329.39-4,299.21

Finding the Fourth Proportional to 7,485.78, 10,329.39 and 4,299.21

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Solution

The fourth proportional to 7,485.78, 10,329.39 and 4,299.21 is: 5,932.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.78 : 10,329.39 = 4,299.21 : x
  2. Step 2: Convert to fraction form
    7,485.78/10,329.39 = 4,299.21/x
  3. Step 3: Cross multiply
    7,485.78x = 10,329.39 × 4,299.21
  4. Step 4: Simplify right side
    7,485.78x = 44,408,216.78
  5. Step 5: Solve for x
    x = 44,408,216.78/7,485.78
  6. Step 6: Final answer
    x = 5,932.34

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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.