Home / 7,542.87-10,409.26-4,185.78

Finding the Fourth Proportional to 7,542.87, 10,409.26 and 4,185.78

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Solution

The fourth proportional to 7,542.87, 10,409.26 and 4,185.78 is: 5,776.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,542.87 : 10,409.26 = 4,185.78 : x
  2. Step 2: Convert to fraction form
    7,542.87/10,409.26 = 4,185.78/x
  3. Step 3: Cross multiply
    7,542.87x = 10,409.26 × 4,185.78
  4. Step 4: Simplify right side
    7,542.87x = 43,570,830.67
  5. Step 5: Solve for x
    x = 43,570,830.67/7,542.87
  6. Step 6: Final answer
    x = 5,776.42

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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.